2149855

View detailed technical data, stock status, and sourcing information for: 2149855
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-318-1976

Item Name Code

15933

Assigment Date

04/14/1990 (36 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

1.843 inches nominal outside diameter, 1.062 inches nominal hole diameter, 40.0 degrees minimum and 50.0 degrees maximum recess angle, 0.375 inches nominal material thickness, 36.0 rockwell c minimum and 42.0 rockwell c maximum hardness rating

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 1.062 inches nominal
Outside Diameter: 1.843 inches nominal
Material Thickness: 0.375 inches nominal
Hardness Rating: 36.0 rockwell c minimum and 42.0 rockwell c maximum
Recess Angle: 40.0 degrees minimum and 50.0 degrees maximum
Material: steel comp 630 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Style Designator: recessed
Test Data Document: 96906-mil-std-6866 standard (includes industry or association standards, individual manufactureer standards, etc.).

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
2149855	Recessed Washer

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-01-318-1976?

The FSCG of the NSN 5310-01-318-1976 is 5310

Does the NSN 5310-01-318-1976 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-318-1976 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-01-318-1976 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-318-1976 contain hazardous materials?

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

When the NSN 5310-01-318-1976 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Sat, Apr 14, 1990