2053404

View detailed technical data, stock status, and sourcing information for: 2053404
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-568-9491

Item Name Code

06158

Assigment Date

01/01/1963 (63 years ago)

0.376 inches minimum and 0.396 inches maximum hole diameter, 0.250 inches nominal external keyway width, 1.609 inches minimum and 1.641 inches maximum outside diameter, 0.657 inches nominal external keyway length, 0.012 inches nominal material thickness

Product Characteristics

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

Hole Diameter: 0.376 inches minimum and 0.396 inches maximum
Outside Diameter: 1.609 inches minimum and 1.641 inches maximum
External Keyway Length: 0.657 inches nominal
External Keyway Width: 0.250 inches nominal
Material Thickness: 0.012 inches nominal
Special Features: 12 slots 0.032 in. wide equally spaced on outside dia
Material: copper alloy overall
Material Document And Classification: mil-c-4042,cond a mil spec single material response overall
Surface Treatment: silver 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
2053404	Keyway Washer
648914	Keyway Washer
648914-000	Keyway Washer
A2053404	Keyway Washer

FAQs

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

What is the FSCG of the NSN 5310-00-568-9491?

The FSCG of the NSN 5310-00-568-9491 is 5310

Does the NSN 5310-00-568-9491 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-00-568-9491 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 5310-00-568-9491 contain precious materials?

Item contains silver.

Does NSN 5310-00-568-9491 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 5310-00-568-9491 was assigned to the Federal Catalog?

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