N4640

View detailed technical data, stock status, and sourcing information for: N4640
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-661-1943

Item Name Code

13393

Assigment Date

02/22/2017 (9 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

4910-01-627-0524 end item identification, washer part name assigned by controlling agency

Product Characteristics

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

End Item Identification: 4910-01-627-0524
Part Name Assigned By Controlling Agency: washer

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
N4640	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-01-661-1943?

The FSCG of the NSN 5310-01-661-1943 is 5310

Does NSN 5310-01-661-1943 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 5310-01-661-1943 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-661-1943 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 5310-01-661-1943 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Wed, Feb 22, 2017