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Flat Washer


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Item Specifics

Federal Supply Class (FSC)
Nuts And Washers
National Item ID Number (NIIN)
Cross-sectional Shape Style
Rectangular AAGR
Hole Diameter
0.169 inches AAUB
Peripheral Shape Style
Round ABMW
Center Hole Shape Style
1 round ABMX
0.016 inches ABNM
Overall Diameter
0.304 inches ADAV
Steel corrosion resisting overall MATT
Material Document And Classification
Qq-s-766 fed spec single material response overall MDCL
Surface Treatment
Passivate overall SFTT
Specification/standard Data
80205-nas620 professional/industrial association standard ZZZK

Item Identification | Nuts And Washers

5310-00-880-5975, A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.

Supply Class (FSC)NSN AssignmentNIINItem Name Code (INC)
5310 Jan 01, 1960 008805975 13393 (Washer, Flat)

End Item Applications NSN 5310-00-880-5975 end item applications/platforms

  • A And D Device  
  • Ballscrew Actuator  
  • Electro-mechanical Actuator Linear  
  • Electro-pneumatic Actuator  
  • Variable B Actuator  
  • Cable Breakout Adapter  
  • Control Det Adapter  
  • Flight Inst Adapter  
  • Test Adapter  
  • Test Adapter Set  
  • Air Conditioner  
  • Chemical Agent Alarm Automatic  
  • Airbo Alignment Set  
  • Fire Control Equipment Alignment Set  
  • Electronic Control Amplifier  
  • Intermediate Frequency Amplifier  
  • Radio Frequency Amplifier  
  • Video Amplifier  
  • Amplifier Assembly  
  • Amplifier Subassembly  
  • Electrical Pulse Analyzer  
  • Antenna  
  • Antenna Assembly  
  • Antenna Control Group  
  • Antenna Control Subassembly  
  • Antenna Coupler Group  
  • Antenna Group  
  • Antenna Module Assy  
  • Antenna Pedestal Subassembly  
  • Acquisition Antenna-receiver-transmitter Group  
  • Antenna Subassembly  
  • Array Assembly  
  • Astroinertial Instr  
  • Auxiliary Power Sup  
  • Azimuth Transfer Un  
  • Backplane Assembly  
  • Antenna Support Base  
  • Battery Assembly  
  • Radio Beacon Set  
  • Blower Power Contro  
  • Special Purpose Cable Assembly Electrical  
  • Special Purpose Cable Assembly Electrical  
  • Television Camera  
  • Fixed Capacitor Ceramic Dielectric  
  • Personnel Carrier Full Tracked  
  • Communications Central  
  • Satellite C Central  
  • Electrical-electronic Equipment Chassis  
  • Electrical Equipment Chassis  
  • Chassis Assembly  
  • Circuit Card Assemb  
  • Circuit Card Assembly  
  • Loop Clamp  
  • Positive Clutch  
  • Friction Clutch Assembly  
  • Radio Frequency Coil  
  • Cold Plate Assembly  
  • Alignment Collimator Set  
  • Communications Control Set  
  • Communicationsterm  
  • Rotary Compressor  
  • Electronic Equipment Compressor-dehydrator  
  • Angle Of A Computer  
  • Central Pr Computer  
  • Navigational Computer  
  • Spoiler Computer  
  • Computer Set  
  • Plug Connector Electrical  
  • Communication Control Console  
  • Situation Display Console  
  • Collector Ring Contact Set  
  • Antenna Control  
  • Computer Control  
  • Direction Finder Control  
  • Distribution Control  
  • Fuel Control  
  • Klystron Frequency Control  
  • Power Supply Control  
  • Pressurizing Set Control  
  • Radar Set Control  
  • Television Camera Control  
  • Transmission Control Assembly  
  • Electrical Control Box Armament System  
  • Control-indicator  
  • Flat-sla Controller  
  • Flight Controller Automatic Pilot  
  • Logic Controller  
  • Control-oscillator Group  
  • Antiskid Control Unit  
  • Consta Control Unit  
  • Fuel Control Unit  
  • Cont Unit Sub-subas  
  • Analog To Digital Converter  
  • Digital To Digital Converter  
  • Frequency Converter Electronic  
  • Modem Converter Si  
  • Air Cooler Electronic Equipment  
  • Enviro Cooling Unit  
  • An/slq-32 Countermeasure Set   (EIC AAN)
  • Subassembly Countermeasure Set  
  • Countermeasures Set  
  • Antenna Coupler  
  • Rotary Coupler Radio Frequency  
  • Battery Cover  
  • Navigation Set Data Converter  
  • Data Distribution System  
  • Delay Line  
  • Demodulator  
  • Digital Communicati  
  • Digital Data Modem  
  • Digital Data Set  
  • Countermeasures Dispenser Subassembly  
  • Distribution Assemb  
  • Distribution Box  
  • Power Divider Radio Frequency  
  • Lift Dolly Set Transportable Shelter  
  • Antenna Drive  
  • Displacer Driver  
  • Electronic Componen  
  • Electronic Components Assembly  
  • Electronic Package  
  • Transportable Electronic Shop  
  • Int Electronic Unit  
  • Electron Tube  
  • Gas Turbine Engine  
  • Gas Turbine Engine Nonaircraft  
  • Radio Frequency Exciter  
  • Facsimile Lightwe  
  • Vaneaxial Fan  
  • Radio Frequency Interference Filter  
  • Filter And Controls  
  • Electrical Filter Assembly  
  • Fire Direction Cent  
  • Aircraft Maintenance Fixture  
  • Guided Missile Maintenance Fixture  
  • Frequency Standard  
  • Emergency Fuel Control Turbine Engine  
  • Main Fuel Control Turbine Engine  
  • Alternating Current Generator  
  • Pulse Generator  
  • Radar Tra Generator  
  • Diesel Engine Generator Set  
  • Diesel Engine Generator Set Semitrailer Mounted  
  • Diesel Engine Generator Set Trailer Mounted  
  • Gas Turbine Engine Generator Set  
  • Geosensor And Case  
  • Pump Governor Pressure Regulating  
  • Guided Bomb Guidance And Control Section  
  • Space Heater  
  • Attack Helicopter  
  • Electrical Card Holder  
  • Radar Target Indicator  
  • Electronic Equipment Installation Kit  
  • Plate Insulator  
  • Interconnecting Box  
  • Interconnecting Cabinet  
  • Programmi Interface  
  • Digi Interface Unit  
  • Elec Interface Unit  
  • Data Entry Keyboard  
  • Kg-84a  
  • Low V Load Assembly  
  • Electrical Load Bank  
  • Low Noise Assembly  
  • Low Noise Assy  
  • L.p. Compressors   (EIC AGN)
  • Data Storage Magnetic Drum  
  • Magnetic Tape Recor  
  • Mainframe Backplane  
  • Mast  
  • Posi Master Station  
  • Message Entry Devic  
  • Advanced Medium Range Air-to-air (amraam)/aim120a Missile   (EIC ADF)
  • Missile Restraint D  
  • Radar Modulator  
  • Radio Frequency Monitor  
  • Mount Subassembly  
  • Multiplexer Set  
  • In Navigational Set  
  • Tacan Navigational Set  
  • Net Control Station  
  • Noise Regulator Ass  
  • Targeting Pod Nose Section  
  • Operations Central  
  • Oscillating Group  
  • Video Co Oscillator  
  • Oscilloscope  
  • Structural Panel Aircraft  
  • Phase Lock Loop  
  • Mending Plate  
  • Electrical-electronic Test Equipment Plug-in Unit  
  • Position And Azimut  
  • Power Control Assem  
  • Electrical Power Control Assembly Aircraft  
  • Power Supply  
  • Power Supply Assembly  
  • Power Supply-receiver  
  • Power Supply Subassembly  
  • Power Switch Assemb  
  • Pressure Vessel Ass  
  • Electronic Equipment Pressurizing Set  
  • Contact Printer Photographic  
  • Radi Probe Assembly  
  • Communications Processor  
  • Radar Data Processor  
  • Protection And Cont  
  • Purge And Pill Unit  
  • Automatic Pilot Controls Rack  
  • Bomb Ejector Rack Aircraft  
  • Radar Chronograph Set  
  • Radar Set  
  • An/tpn-18 Radar Set   (EIC ANA)
  • Radar Set Subassembly  
  • Radio Set  
  • Radio Terminal Set  
  • Radome  
  • Countermeasures Receiver  
  • Radar Receiver  
  • Radar Receiver-generator  
  • Receiver Group  
  • Radar Receiver Subassembly  
  • Radar Receiver-transmitter  
  • Radio Receiver-transmitter  
  • Signal Data Recorder-reproducer Set  
  • Resonant Reflector Laser  
  • Voltage Regulator  
  • Voltage Regulator Assembly  
  • Relay Assembly  
  • Relay Subassembly  
  • Satellite Communica  
  • Satellite Configura  
  • Satellite Configuration Control System  
  • Fl Scanner Assembly  
  • Diode Semiconductor Device  
  • Inertial System Navigation Sensor  
  • Infrared Sensor  
  • Sensor Assembly  
  • Refrig Service Unit  
  • Servo Electronics A  
  • Thru Servo Injector  
  • For Shroud Assembly  
  • Sif Generator  
  • Radar Signal Simulator  
  • Receptacle Slipway Aerial Refueling  
  • Plate Spacer  
  • Speech Equipment  
  • Engine Starter Air Turbine  
  • B-1 Aircraft Support Equipment   (EIC ACF)
  • B-52 Aircraft Support Equipment   (EIC ABF)
  • Antenna Unit Switch  
  • Switch And Oil Pump  
  • Electrical Frequency Synthesizer  
  • Deck Tape  
  • Tape Loader  
  • Tape Transport  
  • Telephone Set  
  • Teletypewriter Subassembly  
  • Communicat Terminal  
  • Tactical S Terminal  
  • Terminal Box  
  • Test Bench Camera S  
  • Guided Missile System Test Equipment  
  • Arm-155/156 Test Set   (EIC ASN)
  • Computer Test Set  
  • Control Test Set  
  • Electronic Circuit Plug-in Unit Test Set  
  • Electronic Systems Test Set  
  • Electron Tube Test Set  
  • Guided Missile System Test Set  
  • Gyro Stabi Test Set  
  • Missile Guidance Components Test Set  
  • Modem Test Set  
  • Optical Al Test Set  
  • Radar Test Set  
  • Radio Test Set  
  • Resistor Test Set  
  • Transponder Set Test Set  
  • Countermeasures Test Set Group  
  • Electronic Systems Test Set Group  
  • Test Set Subassembly  
  • Aircraft Components Test Set Subassembly  
  • Electrical And Electronic Test Equipment Test Set Subassembly  
  • Optical Instruments Test Set Subassembly  
  • Gyro Sta Test Stand  
  • Elect Test Station  
  • Electr Test Station  
  • Electrical-electronic Equipment Test Station  
  • Guided Missile Test Station  
  • Oq-290(v)msm Test Station   (EIC ABA)
  • Test Station Group  
  • An/tlq-17a Traffic Jam   (EIC AKA)
  • Flat Bed Trailer  
  • Current Transformer  
  • Angle Of Attack Transmitter  
  • Countermeasures Transmitter  
  • Position Transmitter  
  • Radar Transmitter  
  • Transmitter Group  
  • Transmitter Subassembly  
  • Radar Transmitter Subassembly  
  • Transponder Set  
  • Magnetic Tape Transport  
  • Cargo Truck  
  • Utility Truck  
  • Truck Tractor  
  • Radio Frequency Tuner  
  • Butterfly Valve  
  • Check Valve  
  • Float Valve Aircraft Fuel Tank  
  • Fuel System Valve  
  • Interconnect Valve  
  • Pressure Cont Valve  
  • Regulating Valve Fluid Pressure  
  • Valve Assembly  
  • Anti-icing Valve Assembly Jet Engine  
  • Voice Terminal  
  • Vpa Assembly  
  • Waveguide Assembly  
  • Wiring Harness  
  • Zoom Assembly  

Item Identification Guide

NSN Reference Drawing

Flat Washers Cross Reference

Part Number CAGE Variation
NAS620-C8L Cage Code D9182 Cross Ref. Part
REW620C8L Cage Code 81349 Original Part
9336C2008-11 Cage Code 94117 Superseded, Discontinued, or Replaced
153-0183-011 Cage Code 94756 Superseded, Discontinued, or Replaced
947620-4801 Cage Code 06481 Superseded, Discontinued, or Replaced
NAS620C8L Cage Code 80205 Superseded, Discontinued, or Replaced
310-0740-440 Cage Code 13499 Cross Ref. Part
B68196 Cage Code K0967 Superseded, Discontinued, or Replaced
542-7476-003 Cage Code 95105 Superseded, Discontinued, or Replaced
4197600-033 Cage Code 05869 Superseded, Discontinued, or Replaced
947620-4081 Cage Code 13973 Superseded, Discontinued, or Replaced
10163827 Cage Code A486G For Reference Only
858514-00 Cage Code 32345 Superseded, Discontinued, or Replaced
5310008805975 Cage Code SCY13 Superseded, Discontinued, or Replaced
P2026-81 Cage Code 08226 Superseded, Discontinued, or Replaced
9336C2008-11 Cage Code 87557 Superseded, Discontinued, or Replaced

National Motor Freight NMFC: A six position numeric code, which divides articles into groups or classes according to physical characteristics. The classification is based on truckloads vs. less than truckload.

Code Description Code Value Meaning
NMF Description NMFC 194160 Washer Or Gaskets, Iron Or Steel,
Universal Freight Code UFC 55210
Less than a truck load rating LTL U 50.0
Water Commodity WCC 713 Metal hardware
Type of Cargo TCC Z No special type of cargo code applicable
Special Handling SHC 9 Other or no special handling required (sh)
Air Dimension Code ADC A Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity ACC B Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling ASH Array No special handling required.

Trade Control Compliance Schedule B Export Code: A ten position numeric code that identifies an item exported overseas. this unique identification code is assigned by the U.S. Census Bureau.

Schedule B Sch. B Description Demilitarization Classification ITAR Regulation
7318220000 Washers other than lock washers, iron or steel Non-usml/non-ccli - no demil or dod tsc required. department of commerce may impose licensing requirements to certain destinations. (note 9). Unclassified Not ITAR Controlled

MOE / End Users Represents the subdivisions of a US governmental organization or an agency of the North Atlantic Treaty Organization (NATO), and other friendly governments and international organizations participating in the federal catalog program.

Country / Entity Name MOE
WB Austria WB
WF Finland WF
WH Hungary WH
WP Poland WP
YA Brazil YA
YB Spain YB
YD Israel YD
YJ Singapore YJ
YP Morocco YP
YW Malaysia YW
ZA Australia ZA
ZC Canada ZC
ZE New Zealand ZE
ZF France ZF
ZG Germany ZG
ZH Korea, Republic Of ZH
ZK United Kingdom ZK
ZN Netherlands ZN
ZP Portugal ZP
ZR Italy ZR
ZS Denmark ZS
ZU Greece ZU
ZW Turkey ZW
ZX Namsa (user) ZX
ZZ United States ZZ
ZZ Department Of The Navy ZZ
No MOE rules found for this NSN.

Material & Special Handling Item material and handling information

Code Description Value Meaning
HMIRS N Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious Metals Indicator A Item does not contain precious metal.
Criticality Code X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Management Rec. / Rep. Code: Special program consumables

 CTL: 9B-----

Air Force

Fund SF – Stock fund applicable to items managed for the air force by the respective inventory control point.
Budget 9 – Air force decentrally managed
Material Management SX – Brac mmac for oc-alc
Price Validation V – The current standard price has been validated. - the item has been analyzed in conjunction with the zero overpricing program and is in the accepted price range. -the item was procured under open competition and under the competitive arena the price is considered fair and reasonable. -zop or standard price challenges are permissible but must be supported by adequate justification.

Air Force Management Code Definition

Fund A two position code that classifies an item into categories in terms of funding and budgeting.
Budget Identifies investment items to budget programs from which item is funded.
Material Management Identifies an item of supply to be managed by a specific activity manager.
Price Validation Indicates validity of the recorded unit price.


Stores Account 1 – Marine corps stock fund account item.
Combat Essentiality 5 – Critical repair part to a combat essential end item. those parts or components whose failure in a combat essential end item wi
Management Echelon B – All commodities
Material Identification B – Consumable repair parts
Operational Test
Physical Category

Marines Code Definition

Stores Account (SAC) Indicates the type of funds employed within the marine corps in supply support operations.
Combat Essentiality (CEC) Establishes if an item is essential to the operational readiness of a weapon system or the conduct of a military mission, or that a functional part contributes to the tactical and essential operations of an item component or assembly, and its failure would render the item inoperable or incapable of fulfilling its mission.
Management Echelon (MEC) Classifies items into categories by material and procurement echelon.
Material Identification (MIC) Identifies method of accounting, degree, and type of control to be maintained for the item and to identify material by specific purpose, type, or classification for the war reserve system.
Operational test (OTC) Indicates special procedures must be performed on an item of supply while under care-in-stores or as a part of the issue process.
Physical Category (PCC) Indicates category for picking, packing, and marking items for shipment.


Cognizance 9B – Naval inventory control point, mechanicsburg
Special Material
Requisition Restriction
Special Material Content

Navy Management Code Definition

Cognizance (COG) Identifies the inventory manager (IM) and inventory control point (ICP).
Special Material (SMIC) Categorizes material on the basis of requirements for source or quality control, technical design, or configuration control, procurement, stocking and issue control, special receipt, inspection, testing, storage, or handling
Req. Restriction (IRRC) Item requisition instructions.
Special Material (SMCC) Indicated that an item represents or contains peculiar material requiring special treatment, precautions, or management.


Accounting Requirements X – Expendable item. an item of army property coded with an arc of ``x'' in the amdf. expendable items require no formal accountability after issue from a stock record account. commercial and fabricated items similar to items coded ``x'' in the amdf are considered expendable items.
Material Category 1 T – Industrial supplies (dla/gsa items)
Material Category 2 2 – Stock fund secondary items
Material Category 3 2 – Nonreparable items (exclusive of insurance and provisioning items). this code will be used to identify items which are not reparable.
Material Category 4 & 5 00 – Dla/gsa-managed items that cannot be identified to a specific army weapons systems/end item

Army Management Code Definition

Accounting Requirements Accounting Requirements Code (ARC): a one position alpha code that indicates the accountability of an item of supply.
Material Category 1 Material category and inventory manager.
Material Category 2 Appropriation and budget activity account.
Material Category 3 Management inventory segment.
Material Category 4 & 5 Specific group / generic category.