5306-01-256-6881

Find complete technical information, availability, and procurement data for: 5306-01-256-6881
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-256-6881

Item Name Code

27851

Assigment Date

06/08/1987 (39 years ago)

hexagon head style, 0.313 inches minimum and 0.363 inches maximum thread length, right-hand thread direction, 3a thread class, 0.635 inches minimum and 0.665 inches maximum fastener length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.313 inches minimum and 0.363 inches maximum
Fastener Length: 0.635 inches minimum and 0.665 inches maximum
Head Style: hexagon
Head Height: 0.110 inches minimum and 0.125 inches maximum
Width Between Flats: 0.367 inches minimum and 0.376 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.302 inches minimum and 0.322 inches maximum
Thread Quantity Per Inch: 32
Surface Finish: 16.0 microinches threads
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Material: titanium alloy uns r56400 overall
Material Document And Classification: ams4967 assn std single material response overall
Surface Treatment: aluminum overall
Surface Treatment Document And Classification: mil-c-83488,type 2 class 3 mil spec single treatment response overall
Thread Series Designator: unjf

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
801651-3-5	Close Tolerance Bolt
MB251-3-5	Close Tolerance Bolt
PBF1264-3-5	Close Tolerance Bolt
SC2663-3-5	Close Tolerance Bolt
ST3M731-3-5	Close Tolerance Bolt
VS3207-3-5	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-256-6881?

The FSCG of the NSN 5306-01-256-6881 is 5306

Does the NSN 5306-01-256-6881 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5306-01-256-6881 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 5306-01-256-6881 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-256-6881 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 5306-01-256-6881 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Mon, Jun 8, 1987