SC-2021-31

View detailed technical data, stock status, and sourcing information for: SC-2021-31
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-129-8101

Item Name Code

16282

Assigment Date

04/12/1982 (44 years ago)

An externally threaded fastener the head of which is usually flat with a periphery not concentric to the bolt shank. The head is not designed for wrenching. It may have a drive feature located at the threaded end, which can be used to rotate the screw and eccentric head into a locking position to secure a flanged or groove component.

right-hand thread direction, 40 thread quantity per inch, 3a thread class, 0.375 inches nominal fastener length, button 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: 3a
Thread Direction: right-hand
Fastener Length: 0.375 inches nominal
Head Style: button
Thread Quantity Per Inch: 40
Part Name Assigned By Controlling Agency: navy special project
Material: steel overall
Thread Series Designator: unc

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
SC-2021-31	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-129-8101?

The FSCG of the NSN 5305-01-129-8101 is 5305

Does the NSN 5305-01-129-8101 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-129-8101 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 5305-01-129-8101 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-129-8101 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 5305-01-129-8101 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Mon, Apr 12, 1982