5305-00-638-7976

Find complete technical information, availability, and procurement data for: 5305-00-638-7976
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-7976

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

1.125 inches nominal fastener length, 2a thread class, right-hand thread direction, hexagon head style, 1.000 inches nominal thread length

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: 1.000 inches nominal
Fastener Length: 1.125 inches nominal
Head Style: hexagon
Head Height: 0.273 inches minimum and 0.289 inches maximum
Width Between Flats: 0.613 inches minimum and 0.625 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Minimum Yield Strength: 69000 pounds per square inch
Material: steel overall
Surface Treatment: cadmium or zinc overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: c class and b-3 type

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
FFB571ATYPEB3CLASSC	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-7976?

The FSCG of the NSN 5305-00-638-7976 is 5305

Does the NSN 5305-00-638-7976 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-7976 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 5305-00-638-7976 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-638-7976 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 5305-00-638-7976 was assigned to the Federal Catalog?

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