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Flat Washer

NSN: 5310-00-996-3158 | Model: 0N124172-4

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
5310-00-996-3158
DEMIL
NO
Cross Sectional Shape
Rectangular
Hole Diameter
0.120 inches
Edge Shape
Round
Center Hole Shape
1 round
Thickness
0.020 inches
Overall Diameter
0.200 inches
Material
Steel comp 303se
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate

Pricing and Availability

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NSN 5310-00-996-3158 Datasheet

Supply Class (FSC):
Nuts And Washers
Cross Reference:
  • 0N124172-4
  • 0N103735-4
Cage Codes:
  • National Security Agency (CAGE 98230)
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

Identification:
HMIC

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

PMIC

U - Precious metal content is unknown

CRITL

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

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 5310-00-996-3158 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
National Security Agency
What is the NIIN of NSN 5310-00-996-3158?
009963158 or 00-996-3158
Does NSN 5310-00-996-3158 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5310-00-996-3158?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Apr 08, 1967