2B1957

View detailed technical data, stock status, and sourcing information for: 2B1957
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-423-8829

Item Name Code

06672

Assigment Date

01/01/1963 (63 years ago)

2a thread class, hexagon head style, 3.500 inches minimum thread length, right-hand thread direction, 5.500 inches nominal fastener 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: 3.500 inches minimum
Fastener Length: 5.500 inches nominal
Head Style: hexagon
Head Height: 0.562 inches nominal
Width Between Flats: 1.125 inches nominal
Point Length: 2.000 inches nominal
Point Diameter: 0.562 inches nominal
Point Style: dog
Internal Drive Style: w/o internal drive
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 10
Hardness Rating: 30.0 rockwell c maximum overall
Minimum Yield Strength: 145000 pounds per square inch
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
2B1957	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-423-8829?

The FSCG of the NSN 5305-00-423-8829 is 5305

Does the NSN 5305-00-423-8829 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-423-8829 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 5305-00-423-8829 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-423-8829 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 5305-00-423-8829 was assigned to the Federal Catalog?

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