5305-01-421-7528

Find complete technical information, availability, and procurement data for: 5305-01-421-7528
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-421-7528

Item Name Code

18257

Assigment Date

11/15/1995 (30 years ago)

A metallic item, usually square or rectangular in cross section, usually longer in relation to its width and thickness, with or without a head, usually designed to fit into the pre-cut slots of two adjacent cylindrically shaped members, to prevent relative rotational movement between the two. It may have mounting holes or slots.

right-hand thread direction, 1.500 inches nominal thread length, 4.500 inches nominal fastener length, 2a thread class, hexagon head style

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: 1.500 inches nominal
Fastener Length: 4.500 inches nominal
Head Style: hexagon
Head Height: 0.378 inches minimum and 0.444 inches maximum
Width Between Flats: 0.906 inches minimum and 0.928 inches maximum
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 11
Material: steel overall
Material Document And Classification: astm a 354 gr bd assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, ty2 cl 3 fed spec single treatment response 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
B1821AH063C450N	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-421-7528?

The FSCG of the NSN 5305-01-421-7528 is 5305

Does the NSN 5305-01-421-7528 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-421-7528 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 5305-01-421-7528 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-421-7528 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 5305-01-421-7528 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Wed, Nov 15, 1995