5310-01-128-6688

Find complete technical information, availability, and procurement data for: 5310-01-128-6688
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-128-6688

Item Name Code

15933

Assigment Date

03/26/1982 (44 years ago)

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

0.551 inches minimum and 0.561 inches maximum recess diameter, 0.625 inches minimum and 0.645 inches maximum outside diameter, 0.441 inches minimum and 0.451 inches maximum hole diameter, 88.0 degrees minimum and 92.0 degrees maximum recess angle, 0.074 inches minimum and 0.082 inches maximum 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: 0.441 inches minimum and 0.451 inches maximum
Outside Diameter: 0.625 inches minimum and 0.645 inches maximum
Recess Diameter: 0.551 inches minimum and 0.561 inches maximum
Material Thickness: 0.074 inches minimum and 0.082 inches maximum
Recess Angle: 88.0 degrees minimum and 92.0 degrees maximum
Material: steel comp 4130 overall
Material Document And Classification: mil-s-18729 mil spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response overall
Style Designator: recessed

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
10109503	Recessed Washer
ST4M150-7001	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-01-128-6688?

The FSCG of the NSN 5310-01-128-6688 is 5310

Does the NSN 5310-01-128-6688 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-128-6688 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 5310-01-128-6688 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-128-6688 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 5310-01-128-6688 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Fri, Mar 26, 1982