00000028

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-028-8755

Item Name Code

18257

Assigment Date

10/13/1976 (49 years ago)

3.000 inches minimum thread length, 2a thread class, hexagon head style, 5.500 inches nominal fastener length, right-hand thread direction

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: 3.000 inches minimum
Fastener Length: 5.500 inches nominal
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.243 inches maximum
Width Between Flats: 0.551 inches minimum and 0.562 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 120000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 5 assn std single material response overall
Surface Treatment: zinc 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
00000028	Hexagon Head Cap Screw
113-256	Hexagon Head Cap Screw
558-5589505 ITE	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-028-8755?

The FSCG of the NSN 5305-01-028-8755 is 5305

Does the NSN 5305-01-028-8755 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-028-8755 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 5305-01-028-8755 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-028-8755 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 5305-01-028-8755 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Wed, Oct 13, 1976