5310-01-641-7657

Find complete technical information, availability, and procurement data for: 5310-01-641-7657
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-641-7657

Item Name Code

37917

Assigment Date

02/02/2015 (11 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.250 inches nominal outside diameter, material viton fluoroelastomer special features, 0.052 inches minimum and 0.072 inches maximum overall height, 0.120 inches nominal hole diameter, rubber sealing 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.

Hole Diameter: 0.120 inches nominal
Outside Diameter: 0.250 inches nominal
Overall Height: 0.052 inches minimum and 0.072 inches maximum
Part Name Assigned By Controlling Agency: rubber sealing washer
Special Features: material viton fluoroelastomer
Color: black overall
Material: rubber synthetic overall
Style Designator: concave

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
93412A401	Seal Washer

FAQs

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

What is the FSCG of the NSN 5310-01-641-7657?

The FSCG of the NSN 5310-01-641-7657 is 5310

Does the NSN 5310-01-641-7657 have a Schedule B code assigned?

Yes, the Schedule B code is 4016996000

Does NSN 5310-01-641-7657 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 5310-01-641-7657 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-641-7657 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 5310-01-641-7657 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Mon, Feb 2, 2015