5305-01-448-4137

Find complete technical information, availability, and procurement data for: 5305-01-448-4137
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-448-4137

Item Name Code

18257

Assigment Date

08/28/1997 (28 years ago)

An item composed of a specially designed channel and a series of nuts having integral self-locking features assembled in predetermined spacing.

0.969 inches minimum and 1.000 inches maximum fastener length, right-hand thread direction, 0.769 inches minimum thread length, hexagon 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: 0.769 inches minimum
Fastener Length: 0.969 inches minimum and 1.000 inches maximum
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Color: bronze and olive drab overall
Material: steel overall
Material Document And Classification: sae gr 5 assn std single material response overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: 171, 1.9.2.3 mil std all treatment responses 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
12387309-109	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-448-4137?

The FSCG of the NSN 5305-01-448-4137 is 5305

Does the NSN 5305-01-448-4137 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-448-4137 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 5305-01-448-4137 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-448-4137 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 5305-01-448-4137 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Thu, Aug 28, 1997