5305-00-318-5777

Find complete technical information, availability, and procurement data for: 5305-00-318-5777
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-318-5777

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes:thrust type washer.

0.250 inches maximum thread length, crowned hexagon head style, 2a thread class, 0.250 inches nominal fastener length, right-hand thread direction

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.250 inches maximum
Fastener Length: 0.250 inches nominal
Head Style: crowned hexagon
Head Height: 0.122 inches minimum and 0.127 inches maximum
Width Between Flats: 0.188 inches nominal
Nominal Thread Diameter: 0.138 inches
Features Provided: casehardened
Thread Quantity Per Inch: 32
Screw Material: steel comp 1213
Screw Material Document And Classification: qq-s-633 fed spec single material response
Thread Series Designator: unc

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
BYRF524-1	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-318-5777?

The FSCG of the NSN 5305-00-318-5777 is 5305

Does the NSN 5305-00-318-5777 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-318-5777 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 5305-00-318-5777 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-318-5777 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 5305-00-318-5777 was assigned to the Federal Catalog?

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