5305-00-637-9433

Find complete technical information, availability, and procurement data for: 5305-00-637-9433
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-637-9433

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

3.900 inches minimum and 4.000 inches maximum fastener length, 1.500 inches minimum and 1.725 inches maximum thread length, right-hand thread direction, hexagon head style, 2a thread class

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: 1.500 inches minimum and 1.725 inches maximum
Fastener Length: 3.900 inches minimum and 4.000 inches maximum
Head Style: hexagon
Head Height: 0.378 inches minimum and 0.403 inches maximum
Width Between Flats: 0.922 inches minimum and 0.938 inches maximum
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 11
Minimum Tensile Strength: 60000 pounds per square inch
Material: copper alloy 464 or copper alloy 462 overall
Material Document And Classification: astm b21,b124, or b283 fed spec 1st material response overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-226-8931	No Name Available	06/11/1971

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
MS35309-472	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-637-9433?

The FSCG of the NSN 5305-00-637-9433 is 5305

Does the NSN 5305-00-637-9433 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-637-9433 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 5305-00-637-9433 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-637-9433 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 5305-00-637-9433 was assigned to the Federal Catalog?

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