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Flat Washer

NSN: 5310-00-167-0706 | Model: 122-2422386 PIECE 227

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 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.

NSN Properties and Flags
NATO Stock Number
Cross Sectional Shape
Hole Diameter
Between 0.505 inches and 0.525 inches
Edge Shape
Center Hole Shape
Between 0.053 inches and 0.073 inches
Overall Diameter
Between 0.870 inches and 0.895 inches
Copper alloy 268 or copper alloy 11
Material Specification
Qq-b-613 federal specification all material responses
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE5E319T8407 2019-02-07 PHPHC 59 HD
SPE5E317T0999 2017-03-01 PAA64 17 HD

Pricing and Availability

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NSN 5310-00-167-0706 Datasheet

Supply Class (FSC):
Nuts And Washers
Cross Reference:
  • 122-2422386 PIECE 227
  • 122-2422387 PC 277
  • 122-2422417 PC 233
  • 122-2422417 PC 277
  • 122-3422387 PC 233
  • 122-2422395 PIECE 233
  • 122-2422395 PIECE 277
  • 122-2422410 PC 277
  • 122-2422391 PIECE 277
  • 8909456
  • NAS1149B0863H
  • AN960B816
  • AN960B816
  • 5310001670706
  • NAS1149B863H
Cage Codes:
  • Naval Ship Systems Command (CAGE 80064)
  • U S Army Aviation and Missile (CAGE 18876)
  • National Aerospace Standards (CAGE 80205)
  • Aeronautical Standards Group (CAGE 88044)
  • Navy Aeronautical Air Force (CAGE 81352)
  • E.c.a Etablissement (CAGE SCY13)
Schedule B & Trade:
  • Schedule B: 7415210000 (NAICS 332722)

    Copper washers including spring washers not threaded

  • SITC: 69432

    Washers (including spring washers) and similar articles, not threaded, of copper

  • End Use: 12300

    Finished metal shapes


N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


U - Precious metal content is unknown


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    194120 - Washers/gaskets/pckg dvcs noi

  • WCC:

    713 - Metal hardware

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $86.91 to $144.86..
Does NSN 5310-00-167-0706 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, Department Of The Navy, U.s. Coast Guard, National Aeronautics and Space Administration, Poland, Brazil, Spain, Singapore, Morocco, Saudi Arabia, Australia, Canada, France, Germany, Netherlands, Portugal, Italy, and Greece
What is the NIIN of NSN 5310-00-167-0706?
001670706 or 00-167-0706
Does NSN 5310-00-167-0706 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5310-00-167-0706?
Solicitation SPE5E319T8407 for qty 59 on 01/31/2019
When was this national stock number assigned to the federal catalog?
Jan 01, 1963