5305-00-558-4901

Find complete technical information, availability, and procurement data for: 5305-00-558-4901
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-558-4901

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

1.000 inches minimum and 1.188 inches maximum thread length, 1.250 inches nominal fastener length, hexagon head style, right-hand thread direction, 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: 1.000 inches minimum and 1.188 inches maximum
Fastener Length: 1.250 inches nominal
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.243 inches maximum
Width Between Flats: 0.551 inches minimum and 0.563 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Minimum Yield Strength: 120000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 8 assn std single material response overall
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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-535-8455	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
MS35301-62	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-558-4901?

The FSCG of the NSN 5305-00-558-4901 is 5305

Does the NSN 5305-00-558-4901 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-558-4901 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 5305-00-558-4901 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-558-4901 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 5305-00-558-4901 was assigned to the Federal Catalog?

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