5305-00-638-8908

Find complete technical information, availability, and procurement data for: 5305-00-638-8908
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-8908

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

Cancelled

This item was cancelled on: 07/01/2025.

0.625 inches nominal fastener length, 2a thread class, hexagon head style, right-hand thread direction, 0.625 inches maximum 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: 0.625 inches maximum
Fastener Length: 0.625 inches nominal
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.243 inches maximum
Width Between Flats: 0.551 inches minimum and 0.562 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Minimum Yield Strength: 120000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 8 assn std single material response overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response overall
Thread Series Designator: unf

FAQs

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

What is the FSCG of the NSN 5305-00-638-8908?

The FSCG of the NSN 5305-00-638-8908 is 5305

Does the NSN 5305-00-638-8908 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-8908 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 5305-00-638-8908 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-638-8908 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 5305-00-638-8908 was assigned to the Federal Catalog?

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