571381

View detailed technical data, stock status, and sourcing information for: 571381
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-057-1381

Item Name Code

06672

Assigment Date

01/01/1963 (63 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

headless (setscrew) head style, 0.500 inches nominal fastener length, right-hand thread direction, 0.500 inches maximum thread length, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.500 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: headless (setscrew)
Point Style: oval
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.125 inches minimum and 0.127 inches maximum
Thread Quantity Per Inch: 20
Material: steel overall
Surface Treatment: phosphate overall
Surface Treatment Document And Classification: mil-c-16232,ty 2 mil spec single treatment response 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
571381	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-057-1381?

The FSCG of the NSN 5305-00-057-1381 is 5305

Does the NSN 5305-00-057-1381 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-057-1381 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 5305-00-057-1381 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-057-1381 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 5305-00-057-1381 was assigned to the Federal Catalog?

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