5305-00-637-6958

Find complete technical information, availability, and procurement data for: 5305-00-637-6958
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-637-6958

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, 0.553 inches minimum and 0.615 inches maximum thread length, 0.615 inches minimum and 0.635 inches maximum fastener length, fillister head style, 2a 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: 2a
Thread Direction: right-hand
Thread Length: 0.553 inches minimum and 0.615 inches maximum
Fastener Length: 0.615 inches minimum and 0.635 inches maximum
Head Style: fillister
Head Diameter: 0.250 inches minimum and 0.270 inches maximum
Head Height: 0.102 inches minimum and 0.113 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 70000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum and 100.0 rockwell b maximum
Screw Material: steel
Screw Material Document And Classification: ams 5061 assn std single material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: ams 2400 assn std single treatment response
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-207-2168	No Name Available	01/01/1963

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
AN117008	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-637-6958?

The FSCG of the NSN 5305-00-637-6958 is 5305

Does the NSN 5305-00-637-6958 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-637-6958 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 5305-00-637-6958 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-637-6958 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 5305-00-637-6958 was assigned to the Federal Catalog?

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