5305-01-286-3983

Find complete technical information, availability, and procurement data for: 5305-01-286-3983
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-286-3983

Item Name Code

18257

Assigment Date

10/01/1988 (37 years ago)

2a thread class, 2.750 inches nominal fastener length, 1.0000 inches minimum and 1.3125 inches maximum thread length, right-hand thread direction, 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: 1.0000 inches minimum and 1.3125 inches maximum
Fastener Length: 2.750 inches nominal
Head Style: hexagon
Head Height: 0.250 inches nominal
Width Between Flats: 0.5625 inches nominal
End Item Identification: mrap - cougar tow; mrap - cougar sabr/tow
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 33.0 rockwell c minimum overall
Special Features: head marked with six radical lines to indicate grade 8
Color: yellow overall
Material: steel overall
Surface Treatment: chromate 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
91257A635	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-286-3983?

The FSCG of the NSN 5305-01-286-3983 is 5305

Does the NSN 5305-01-286-3983 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-286-3983 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 5305-01-286-3983 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-286-3983 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 5305-01-286-3983 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sat, Oct 1, 1988