5305-00-638-1438

Find complete technical information, availability, and procurement data for: 5305-00-638-1438
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-1438

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

1.000 inches nominal fastener length, 0.750 inches minimum thread length, 0.312 inches nominal head diameter, right-hand thread direction, flat chamfer head style

Product Characteristics

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

Thread Direction: right-hand
Thread Length: 0.750 inches minimum
Fastener Length: 1.000 inches nominal
Head Style: flat chamfer
Head Diameter: 0.312 inches nominal
Head Height: 0.438 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.250 inches nominal
Thread Quantity Per Inch: 22
Minimum Tensile Strength: 150 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
Thread Series Designator: ba

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
B314099-1	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-1438?

The FSCG of the NSN 5305-00-638-1438 is 5305

Does the NSN 5305-00-638-1438 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-1438 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 5305-00-638-1438 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-638-1438 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 5305-00-638-1438 was assigned to the Federal Catalog?

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