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Extended Washer Self-locking Nut


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Item Specifics

Federal Supply Class (FSC)
Nuts And Washers
National Item ID Number (NIIN)
Thread Class
Thread Direction
Right-hand AAJF
Locking Feature
Prevailing torque all metal design AAUM
Washer Outside Diameter
0.244 inches maximum AAVX
Overall Height
0.115 inches minimum and 0.141 inches maximum ABKW
Nut Style
Hexagon ACTA
Washer Thickness
0.010 inches minimum ADEM
Width Across Flats
0.181 inches minimum and 0.190 inches maximum ASDB
Temp Rating
550.0 deg fahrenheit AZKQ
Thread Series
Thread Quantity Per Inch
Nominal Thread Size
0.138 inches CQJX
Steel corrosion resisting overall MATT
Surface Treatment
Passivate overall SFTT

Item Identification | Nuts And Washers

5310-00-878-9518, A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. an integral feature is incorporated for locking on the threads of a mating member.

Supply Class (FSC)NSN AssignmentNIINItem Name Code (INC)
5310 Jan 01, 1962 008789518 29730 (Locking, Extended Washer Nut, Self)

End Item Applications NSN 5310-00-878-9518 end item applications/platforms

  • Test Set Accessory Kit  
  • Rack Adapter Storage  
  • Test Adapter  
  • Ah 64 Airframe (rotary Wing Aircraft)   (EIC ABJ)
  • Air Conditioner  
  • Sof ( Ac-130h Aircraft Mc-130h   (EIC ATF)
  • Air Traffic Control  
  • Electronic Control Amplifier  
  • Radio Frequency Amplifier  
  • Video Amplifier  
  • Amplifier Assembly  
  • Antenna Assembly  
  • Antenna Coupler Group  
  • Antenna Group  
  • Back Panel Assembly  
  • Backplane Assembly  
  • Navigational S Base  
  • J Box  
  • Electrical Equipment Cabinet  
  • Special Purpose Cable Assembly Electrical  
  • Communications Central  
  • Satellite C Central  
  • Electrical-electronic Equipment Chassis  
  • Chassis And Harness  
  • Circuit Card Assembly  
  • Vacuum Coffee Maker  
  • Altitude Computer  
  • Fire Control Computer  
  • Navigational Computer  
  • Readout Un Computer  
  • Steering S Computer  
  • Computer Assembly  
  • Navigational Computer Set  
  • Connector Assembly  
  • Connector-switch Assembly  
  • Generator Control  
  • Guided Missile Test Set Control  
  • Gyroscope Control Attitude-heading  
  • Intercommunication Set Control  
  • Power Supply Control  
  • Temperature Control  
  • Electrical Control Box Armament System  
  • Controller Assembly  
  • Control-monitor  
  • Test Control Panel  
  • Signal Data Converter  
  • Electronic Counter Digital  
  • Electronic Counter Digital Readout  
  • Command Signals Decoder  
  • Video Decoder  
  • Digital Data Set  
  • Radar Display Unit  
  • Distribution Box  
  • Drum Assembly  
  • Electronic Components Assembly  
  • Electronic Rack Ass  
  • Direct Current Power Filter  
  • Radio Frequency Interference Filter  
  • Electrical Filter Assembly  
  • Rad Filter Assembly  
  • Frequency Multiplier-oscillator  
  • Main Fuel Control Turbine Engine  
  • Speed Increaser Gear Assembly  
  • Pulse Generator  
  • Signal Generator  
  • Sweep Generator  
  • Diesel Engine Generator Set Trailer Mounted  
  • Ground Support Equi  
  • Space Heater  
  • Attack Helicopter  
  • Azimuth-elevation-range Indicator  
  • Navigation Inertial Reference Unit  
  • Digi Interface Unit  
  • Interferometer  
  • Navigational Light Aircraft  
  • Indicator Light Assembly  
  • Low V Load Assembly  
  • Load Panel  
  • Maintenance Support Station  
  • Microwave Assembly  
  • Advanced Medium Range Air-to-air (amraam)/aim120a Missile   (EIC ADF)
  • Air-to-air Missile Phoenix (aim-54)   (EIC BBN)
  • Tomahawk Missile   (EIC A4N)
  • Missile Restraint D  
  • Radar Modulator  
  • Radio Transmitter Modulator  
  • Modulator-oscillator  
  • Integrator Module  
  • Switch Assem Module  
  • Missile Guidance Set Monitor  
  • Monitor-programmer  
  • Electrical Equipment Mounting Base  
  • Multimeter  
  • Multiplexer-demulti  
  • Multiplexer-power Supply Group  
  • In Navigational Set  
  • Satellite Signals Navigation Set  
  • Oscillator Assembly  
  • Oscilloscope  
  • Power Panel Test Se  
  • Power Distribution Panel  
  • Pad Panel Assembly  
  • Electronic Plug-in  
  • Position And Azimut  
  • Power Distribution-reference Signal Group  
  • Guided Missile System Power Distribution Set  
  • Power Supply  
  • Power Supply Assembly  
  • Power Supply Subassembly  
  • Printed Wiring Board  
  • Bridge Processor  
  • Communication Distribution Processor  
  • Signal Data Processor  
  • Pulse Forming Netwo  
  • Purge And Pill Unit  
  • Electrical Equipment Rack  
  • Elect Rack Assembly  
  • Radar Set Control  
  • Radar Set Subassembly  
  • Radiac Set  
  • Radio Set  
  • Countermeasures Receiver  
  • Radar Receiver  
  • Radio Receiver  
  • Receiver-transmitte  
  • Radio Receiver-transmitter  
  • Receiver-transmitter Subassembly  
  • Switching Regulator  
  • Voltage Regulator  
  • Electromagnetic Relay  
  • Relay-switch Assemb  
  • Tube Per Repair Kit  
  • Displacement Rod  
  • Rt Electronics  
  • Satellite Communica  
  • Servo  
  • Servo Assembly  
  • Sensor Si Simulator  
  • Sonar Acoustic Miscellaneous   (EIC A3N)
  • Speech Security Equ  
  • B-1 Aircraft Support Equipment   (EIC ACF)
  • Thermostatic Switch  
  • Regulator Switching  
  • Synchronizer  
  • Electrical Synchronizer  
  • Electro-optical Target Designator Set  
  • Telephone Set  
  • Teletypewriter Set  
  • Communicat Terminal  
  • Terminal Communicat  
  • Display Test Bench  
  • Mini-sace Test Consoles   (EIC AUN)
  • Test Facilities Kit  
  • Automatic Pilot Flight Controller Test Set  
  • Computer Test Set P  
  • Control Test Set  
  • Countermeasures Dispensing Set Test Set  
  • Electrical Cable Test Set  
  • Electrical Power Test Set  
  • Electronic Systems Test Set  
  • Fire Control System Test Set  
  • Flight Control System Test Set  
  • Flight Lin Test Set  
  • Fuel Control System Test Set  
  • Guided Missile System Test Set  
  • Gyro Stabi Test Set  
  • Indicator Test Set  
  • Inertial Device Test Set  
  • Laser Infr Test Set  
  • Missile Guidance Components Test Set  
  • Modem Test Set  
  • Navigation Test Set  
  • Position A Test Set  
  • Radar Test Set  
  • Radio Frequency Power Test Set  
  • Countermeasures Test Set Group  
  • Test Set Subassembly  
  • Aircraft Components Test Set Subassembly  
  • Electrical And Electronic Test Equipment Test Set Subassembly  
  • Gyro Sta Test Stand  
  • Test Station  
  • Elect Test Station  
  • Electr Test Station  
  • Electrical-electronic Equipment Test Station  
  • Fuel Control System Components Test Station  
  • Gyro Test Station  
  • Oq-290(v)msm Test Station   (EIC ABA)
  • Test Station Group  
  • B-1b Aircraft Trainer   (EIC AUF)
  • Countermeasures Transmitter  
  • Radar Transmitter  
  • Transmitter Subassembly  
  • Radar Transmitter Subassembly  
  • Radio Tray Assembly  
  • Cargo Truck  
  • Truck Tractor  
  • Aircraft Cooling Turbine  
  • Regulating Valve Fluid Pressure  
  • Waveguide Assembly  
  • Branched Wiring Harness  

Item Identification Guide

NSN Reference Drawing

Self-locking Nut Extended Washers Cross Reference

Part Number CAGE Variation
NAS1291-C06M Cage Code D9182 Cross Ref. Part
P32331 Cage Code U1604 US/NATO Reproduced Part
114-0231-003 Cage Code 94756 Cross Ref. Part
RMLH3858-62 Cage Code 019L2 Cross Ref. Part
1138-123 Cage Code D9182 Cross Ref. Part
568-4-24347-012 Cage Code K2523 Superseded, Discontinued, or Replaced
B68462 Cage Code K0967 Superseded, Discontinued, or Replaced
568-4-24347-011 Cage Code K2523 Superseded, Discontinued, or Replaced
P32331 Cage Code F0754 Superseded, Discontinued, or Replaced
H42L06 Cage Code F7652 Superseded, Discontinued, or Replaced
NAS1291C06M Cage Code 80205 Original Part
H42L06 Cage Code 15653 Superseded, Discontinued, or Replaced
1790044-11 Cage Code 55972 Superseded, Discontinued, or Replaced
H42L06 Cage Code 03350 Superseded, Discontinued, or Replaced
H42L06 Cage Code R1120 Superseded, Discontinued, or Replaced
P323331 Cage Code U1604 Superseded, Discontinued, or Replaced
RMLH3858-62 Cage Code 72962 Superseded, Discontinued, or Replaced
947532-306 Cage Code 06481 Superseded, Discontinued, or Replaced
263-008-0632 Cage Code 95542 Superseded, Discontinued, or Replaced
5310008789518 Cage Code SCY13 Superseded, Discontinued, or Replaced
10088034 Cage Code A486G For Reference Only
H42L06 Cage Code FB009 Cross Ref. Part
H42L06 Cage Code K1678 Superseded, Discontinued, or Replaced
568/4/24347/012 Cage Code K1659 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 093486 Bolts, Nuts Or Screws, Noi (sub 3)
Universal Freight Code UFC 48950
Less than a truck load rating LTL W Rating variable
Water Commodity WCC 573 Bolts or nuts (iron or steel),(less than 35 feet)
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
7318160000 Nuts of 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
WL Slovenia WL
WP Poland WP
YA Brazil YA
YB Spain YB
YD Israel YD
YJ Singapore YJ
YP Morocco YP
YW Malaysia YW
ZA Australia ZA
ZB Belgium ZB
ZC Canada ZC
ZD South Africa ZD
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 Army 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 F The item is an aviation critical safety item/flight safety critical aircraft part (acsi/fscap).
Repairability Z This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Management Rec. / Rep. Code: Special program consumables


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 FX – F-15 eagle aircraft
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 K – Reserved
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 BJ – Ah-64 airframe

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.