5305-00-957-8379

Find complete technical information, availability, and procurement data for: 5305-00-957-8379
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-957-8379

Item Name Code

06657

Assigment Date

01/01/1962 (64 years ago)

flat countersunk undercut head style, right-hand thread direction, 0.531 inches minimum thread length, 3a thread class, 1.204 inches minimum and 1.250 inches maximum 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: 3a
Thread Direction: right-hand
Thread Length: 0.531 inches minimum
Fastener Length: 1.204 inches minimum and 1.250 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.628 inches minimum and 0.633 inches maximum
Head Height: 0.087 inches minimum and 0.089 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 180000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Screw Material: steel comp e4340 or steel comp 4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 or steel comp 4130 or steel comp 4037
Screw Surface Treatment: cadmium
Thread Series Designator: unf

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
3M49-5-11	Machine Screw
HT5U11	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-957-8379?

The FSCG of the NSN 5305-00-957-8379 is 5305

Does the NSN 5305-00-957-8379 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-957-8379 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 5305-00-957-8379 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-957-8379 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 5305-00-957-8379 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962