5306-01-337-6971

Find complete technical information, availability, and procurement data for: 5306-01-337-6971
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-337-6971

Item Name Code

15903

Assigment Date

04/21/1991 (35 years ago)

A headed externally threaded fastener whose threaded portion is of one nominal diameter having two or more fins extending from the head to the shank.

8.105 inches minimum and 8.135 inches maximum fastener length, right-hand thread direction, 0.370 inches nominal thread length, dished hexagon head style, 3a thread class

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: 0.370 inches nominal
Fastener Length: 8.105 inches minimum and 8.135 inches maximum
Head Style: dished hexagon
Head Height: 0.125 inches minimum and 0.140 inches maximum
Width Between Flats: 0.429 inches minimum and 0.439 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 7.740 inches minimum and 7.760 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Surface Finish: 32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response or ams 5737 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty2 cl 2 fed spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas6304 professional/industrial association standard

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
NAS6304-124	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-337-6971?

The FSCG of the NSN 5306-01-337-6971 is 5306

Does the NSN 5306-01-337-6971 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-337-6971 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 5306-01-337-6971 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-337-6971 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 5306-01-337-6971 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sun, Apr 21, 1991