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Flat Washer


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Item Specifics

Federal Supply Class (FSC)
Nuts And Washers
National Item ID Number (NIIN)

Item Identification | Nuts And Washers

5310-00-754-1686, 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 007541686 13393 (Washer, Flat)

End Item Applications NSN 5310-00-754-1686 end item applications/platforms

  • Electro-mechanical Actuator Linear  
  • Mechanical Actuator Aircraft  
  • Ground Handling Equipment Adapter  
  • Air Conditioner  
  • Auxiliary Power Sup  
  • Special Purpose Cable Assembly Electrical  
  • Electrical Cable Assembly Set  
  • Air-antitank Defense Missile System Carrier  
  • Prima Cell Assembly  
  • Center-aft Section  
  • Message Swi Central  
  • An/tyc-39a Central Message Switch   (EIC AYA)
  • Chassis Assembly  
  • Cimbal And Torquer  
  • Circuit Card Assembly  
  • Close In Weapon System (ciws-phalanx)   (EIC A1N)
  • Centrifugal Clutch Assembly Aircraft  
  • Generator Control  
  • Pne Control Monitor  
  • Air Cooler Electronic Equipment  
  • Rotary Coupler Radio Frequency  
  • Rocket Motor Cover  
  • Warehouse Crane Truck  
  • Countermeasures Dispenser Subassembly  
  • Head-up Display Unit  
  • Antenna Drive  
  • Angle Drive Unit  
  • Gun Drive Unit Aircraft  
  • Fire Pumps   (EIC AHN)
  • Aircraft Maintenance Fixture  
  • Main Fuel Control Turbine Engine  
  • Accessory Drive Gearbox Turbine Engine  
  • Steering Gearbox Assembly  
  • Gearcase-motor  
  • Alternating Current-direct Current Generator  
  • Gas Turbine Engine Generator Set  
  • Guided Missile Guidance And Control Section  
  • Training Guided Missile  
  • Lever Control Handle  
  • Gearbox Housing Turbine Engine  
  • Mechanical Drive Housing  
  • Communication Equipment Interface Unit  
  • Inverter  
  • Control Lever  
  • Quadrant Lever  
  • Advanced Medium Range Air-to-air (amraam)/aim120a Missile   (EIC ADF)
  • Air-to-air Missile Phoenix (aim-54)   (EIC BBN)
  • Air-to-air Missile Sparrow (aim-7)   (EIC BDN)
  • Direct Current Motor  
  • R Mounting Platform  
  • Electrical Power Control Assembly Aircraft  
  • Power Supply  
  • Power Supply Assembly  
  • Fuel Pump Jet Engine  
  • Rotary Pump  
  • Radio Set  
  • Air Cycle Refrigeration Unit Aircraft  
  • Air Pressure Regulator Aircraft Cabin  
  • Servocylinder  
  • Nonexpandable Shelter  
  • Radar Signal Simulator  
  • Radar Signal Simulator Station Guided Missile System  
  • Aircraft Nosewheel Steering Unit  
  • B-1 Aircraft Support Equipment   (EIC ACF)
  • Switch Assembly  
  • An/uya-4(v) Tactical Data System   (EIC BYN)
  • Coolant Fluid Tank Aircraft  
  • Telephone Set  
  • Electronic Systems Test Set  
  • Test Set Module Nav  
  • Mechanical Tool Unl  
  • Mk 46 Torpedo Systems   (EIC BMN)
  • Wheeled Tractor Warehouse  
  • Electronic Warfare Training Set  
  • Pressure Transmitter  
  • Radar Transmitter  
  • Guided Missile Transporter-erector  
  • Turret Struct Assy  
  • Regulating Valve Fluid Pressure  
  • Rotary Valve Selector  
  • Voice Terminal  
  • Guided Missile Warhead Section High Explosive  
  • Aircraft Mounted Winch  

Flat Washers Cross Reference

Part Number CAGE Variation
NAS620-4161 Cage Code 80205 Cross Ref. Part
NAS620-416L Cage Code 80205 Original Part
310-0740-570 Cage Code 13499 Original Part
005519 Cage Code 78640 Superseded, Discontinued, or Replaced
14324 Cage Code 14351 Superseded, Discontinued, or Replaced
NAS620-4161 Cage Code 80205 Cross Ref. Part
NAS620-416L Cage Code 80205 Original Part
310-0740-570 Cage Code 13499 Original Part
005519 Cage Code 78640 Superseded, Discontinued, or Replaced
14324 Cage Code 14351 Superseded, Discontinued, or Replaced
NAS620-4161 Cage Code 80205 Cross Ref. Part
NAS620-416L Cage Code 80205 Original Part
310-0740-570 Cage Code 13499 Original Part
005519 Cage Code 78640 Superseded, Discontinued, or Replaced
14324 Cage Code 14351 Superseded, Discontinued, or Replaced
NAS620-4161 Cage Code 80205 Cross Ref. Part
NAS620-416L Cage Code 80205 Original Part
310-0740-570 Cage Code 13499 Original Part
005519 Cage Code 78640 Superseded, Discontinued, or Replaced
14324 Cage Code 14351 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
WI Lithuania WI
WP Poland WP
WR Romania WR
WU Bulgaria WU
YA Brazil YA
YB Spain YB
YD Israel YD
YJ Singapore YJ
YW Malaysia YW
ZA Australia ZA
ZB Belgium ZB
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
ZT Norway ZT
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 U Precious metal content is unknown
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----9

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
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 9 – Non-hazardous or non-sensitive item, does not require hazardous or special handling, packaging or precautions

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.