639975

View detailed technical data, stock status, and sourcing information for: 639975
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-495-9591

Item Name Code

13393

Assigment Date

01/01/1963 (63 years ago)

rectangular cross-sectional shape style, round peripheral shape style, round center hole shape style, 0.030 inches nominal thickness, 1.141 inches nominal hole diameter

Product Characteristics

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

Cross-Sectional Shape Style: rectangular
Hole Diameter: 1.141 inches nominal
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.030 inches nominal
Overall Diameter: 1.750 inches nominal
Material: steel overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5365-00-495-7029	No Name Available	10/01/1975

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
30207-4	Flat Washer
639975	Flat Washer
A0000806	Flat Washer
GP4659D	Flat Washer
R20979	Flat Washer
S638-3	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-495-9591?

The FSCG of the NSN 5310-00-495-9591 is 5310

Does the NSN 5310-00-495-9591 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-495-9591 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 5310-00-495-9591 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-495-9591 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 5310-00-495-9591 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963