204-657

View detailed technical data, stock status, and sourcing information for: 204-657
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-227-4884

Item Name Code

15938

Assigment Date

01/01/1963 (63 years ago)

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

0.344 inches nominal hole diameter, w/s: aircraft, hercules c-130; engine, aircraft, t56-a-7/15 (c-130b/e/h/n/p); 485 tacs; helicopter, super jolly h-53; aircraft, (ac-130h, ec-130e, mc-130h, hc-130); helicopter, hh-53h pace low; aircraft, airlifter c-17a; various shore atc end item identification, 0.728 inches nominal outside diameter, 0.125 inches nominal overall height, 0.006 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: 0.344 inches nominal
Outside Diameter: 0.728 inches nominal
Overall Height: 0.125 inches nominal
Material Thickness: 0.006 inches nominal
End Item Identification: w/s: aircraft, hercules c-130; engine, aircraft, t56-a-7/15 (c-130b/e/h/n/p); 485 tacs; helicopter, super jolly h-53; aircraft, (ac-130h, ec-130e, mc-130h, hc-130); helicopter, hh-53h pace low; aircraft, airlifter c-17a; various shore atc
Material: steel comp 1074 overall
Material Document And Classification: sae assn std single material response overall
Style Designator: spring tension

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-335-0610	No Name Available	01/01/1963
6105-00-604-8586	No Name Available	01/01/1963
3110-00-623-7098	No Name Available	03/11/1970

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
0-3518	Spring Tension Washer
204-657	Spring Tension Washer
234-0286-000	Spring Tension Washer
60A5A252-1	Spring Tension Washer
9062320	Spring Tension Washer
FQ728-006	Spring Tension Washer

FAQs

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

What is the FSCG of the NSN 5310-00-227-4884?

The FSCG of the NSN 5310-00-227-4884 is 5310

Does the NSN 5310-00-227-4884 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-227-4884 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 5310-00-227-4884 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-227-4884 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 5310-00-227-4884 was assigned to the Federal Catalog?

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