5305-00-261-1981

Find complete technical information, availability, and procurement data for: 5305-00-261-1981
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-261-1981

Item Name Code

18257

Assigment Date

01/01/1961 (65 years ago)

2a thread class, 2.000 inches maximum thread length, right-hand thread direction, 2.000 inches nominal fastener length, 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: 2.000 inches maximum
Fastener Length: 2.000 inches nominal
Head Style: hexagon
Head Height: 0.531 inches minimum and 0.563 inches maximum
Width Between Flats: 1.285 inches minimum and 1.312 inches maximum
Nominal Thread Diameter: 0.875 inches
Thread Quantity Per Inch: 9
Minimum Tensile Strength: 55000 pounds per square inch
Hardness Rating: 207.0 brinell standard maximum overall
Minimum Yield Strength: 28000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 2 assn std single material 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
MS35289-209	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-261-1981?

The FSCG of the NSN 5305-00-261-1981 is 5305

Does the NSN 5305-00-261-1981 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-261-1981 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 5305-00-261-1981 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-261-1981 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 5305-00-261-1981 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961