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Flat Washer

NSN: 5310-01-352-9573 | Model: NAS1149C0316R

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 0.193 inches and 0.213 inches
Edge Shape
Center Hole Shape
1 round
Between 0.014 inches and 0.018 inches
Overall Diameter
Between 0.433 inches and 0.458 inches
End Application
Mrap - cougar
Criticality Code Justification
Special Features
The item is a flight safety critical aircraft part (fscap).
Steel comp 301 or steel comp 302 or steel comp 304 or steel comp 316 or steel comp 321 or steel comp 347
Surface Treatment
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Specification Data
80205-nas1149 professional/industrial association standard
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE5E319T8388 2019-02-07 PHPHC 5000000 EA
SPE5E319T4162 2018-12-04 PHPHC 64300 EA
SPE5E319T3553 2018-11-21 PHPHC 77168 EA
SPE5E319T0430 2018-10-12 PHPHC 77168 EA
SPE5E817TF935 2017-09-12 PHPHA 48507 EA
SPE5EC15T0539 2015-04-23 PHPHA 52748 EA

Pricing and Availability

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NSN 5310-01-352-9573 Datasheet

Supply Class (FSC):
Nuts And Washers
Cross Reference:
  • NAS1149C0316R
  • NAS1149C0316R
  • 10122234
Cage Codes:
  • Herndon Products, Llc (CAGE 3G1W3)
  • National Aerospace Standards (CAGE 80205)
  • Nimikkeistokeskus Ncb Finland (CAGE A486G)
Schedule B & Trade:
  • Schedule B: 7318220000 (NAICS 332722)

    Washers other than lock washers, iron or steel

  • SITC: 69422

    Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, not threaded, of iron or steel

  • 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.


A - Item does not contain precious metal.


- The item is an aviation critical safety item/flight safety critical aircraft part (acsi/fscap).

Freight Information:
  • NMFC:

    093486 - Bolts, nuts or screws, noi (sub 3)

  • WCC:

    573 - Bolts or nuts (iron or steel),(less than 35 feet)

  • 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 $0.12 to $0.20..
Does NSN 5310-01-352-9573 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, U.s. Marine Corps, Department Of The Navy, U.s. Coast Guard, Finland, Lithuania, Slovenia, Romania, Slovakia, Czech Republic, Brazil, Spain, Columbia, Singapore, Malaysia, Australia, Belgium, Canada, New Zealand, Germany, Republic Of Korea, United Kingdom, Netherlands, Italy, Denmark, Greece, and Turkey
What is the NIIN of NSN 5310-01-352-9573?
013529573 or 01-352-9573
Does NSN 5310-01-352-9573 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5310-01-352-9573?
Solicitation SPE5E319T8388 for qty 5000000 on 01/31/2019
When was this national stock number assigned to the federal catalog?
Feb 04, 1992