639139-157

View detailed technical data, stock status, and sourcing information for: 639139-157
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-050-0396

Item Name Code

06657

Assigment Date

10/31/1977 (48 years ago)

0.155 inches minimum and 0.167 inches maximum head diameter, 2a thread class, 0.344 inches minimum and 0.375 inches maximum fastener length, 0.308 inches minimum and 0.375 inches maximum thread length, pan no. 2 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 Class: 2a
Thread Length: 0.308 inches minimum and 0.375 inches maximum
Fastener Length: 0.344 inches minimum and 0.375 inches maximum
Head Style: pan no. 2
Head Diameter: 0.155 inches minimum and 0.167 inches maximum
Head Height: 0.045 inches minimum and 0.053 inches maximum

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
639139-157	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-050-0396?

The FSCG of the NSN 5305-01-050-0396 is 5305

Does NSN 5305-01-050-0396 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 5305-01-050-0396 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-050-0396 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 5305-01-050-0396 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Mon, Oct 31, 1977