307555

View detailed technical data, stock status, and sourcing information for: 307555
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-121-8378

Item Name Code

14218

Assigment Date

10/25/1968 (57 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

0.254 inches minimum hole diameter, 0.062 inches nominal material thickness, s 3 fscm 32195 mfr ref 4th material response overall material document and classification, steel corrosion resisting overall material, 0.442 inches nominal outside diameter

Product Characteristics

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

Hole Diameter: 0.254 inches minimum
Outside Diameter: 0.442 inches nominal
Material Thickness: 0.062 inches nominal
Material: steel corrosion resisting overall
Material Document And Classification: s 3 fscm 32195 mfr ref 4th material response overall
Style Designator: split helical-right hand

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
307555	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-121-8378?

The FSCG of the NSN 5310-00-121-8378 is 5310

Does the NSN 5310-00-121-8378 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-121-8378 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 5310-00-121-8378 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-121-8378 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 5310-00-121-8378 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Oct 25, 1968