400638-1C

View detailed technical data, stock status, and sourcing information for: 400638-1C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-211-9911

Item Name Code

15938

Assigment Date

04/15/1973 (53 years ago)

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes:thrust type washer.

0.180 inches minimum and 0.195 inches maximum overall height, 1.872 inches nominal hole diameter, 46.0 rockwell c minimum and 49.0 rockwell c maximum hardness rating, 0.025 inches maximum material thickness, 2.420 inches nominal outside diameter

Product Characteristics

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

Hole Diameter: 1.872 inches nominal
Outside Diameter: 2.420 inches nominal
Overall Height: 0.180 inches minimum and 0.195 inches maximum
Material Thickness: 0.025 inches maximum
Hardness Rating: 46.0 rockwell c minimum and 49.0 rockwell c maximum
Material: steel comp 1075 overall
Material Document And Classification: sae assn std single material response overall

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
400638-1-C	Spring Tension Washer
400638-1C	Spring Tension Washer
5310PL1205131	Spring Tension Washer
801625-551-003 PC NO 39A	Spring Tension Washer

FAQs

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

What is the FSCG of the NSN 5310-00-211-9911?

The FSCG of the NSN 5310-00-211-9911 is 5310

Does the NSN 5310-00-211-9911 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-211-9911 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 5310-00-211-9911 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-211-9911 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 5310-00-211-9911 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Sun, Apr 15, 1973