5306-01-391-1556

Find complete technical information, availability, and procurement data for: 5306-01-391-1556
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-391-1556

Item Name Code

15903

Assigment Date

06/06/1994 (32 years ago)

A parts kit consisting of numerous items. The kit may contain seals, gaskets, packing, and/or retainers for repairing mechanical equipment. Excludes: kits including tools, collars, pins, sleeves and associated hardware. Excludes:parts kit (1), seal replacement, artillery.

3a thread class, 0.625 inches nominal thread length, 3.861 inches minimum and 3.891 inches maximum fastener length, dished hexagon head style, 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: 3a
Thread Direction: right-hand
Thread Length: 0.625 inches nominal
Fastener Length: 3.861 inches minimum and 3.891 inches maximum
Head Style: dished hexagon
Head Height: 0.312 inches minimum and 0.327 inches maximum
Width Between Flats: 0.928 inches minimum and 0.940 inches maximum
Grip Diameter: 0.6190 inches minimum and 0.6195 inches maximum
Shank Unthreaded Hole Diameter: 0.141 inches minimum and 0.151 inches maximum first hole
Nominal Thread Diameter: 0.625 inches
Grip Length: 3.240 inches minimum and 3.260 inches maximum
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 160000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.659 inches minimum and 3.679 inches maximum first hole
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp e4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams6322 assn std 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty2 cl2 fed spec all treatment responses 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
NAS6210-52D	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-391-1556?

The FSCG of the NSN 5306-01-391-1556 is 5306

Does the NSN 5306-01-391-1556 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-391-1556 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 5306-01-391-1556 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-391-1556 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 5306-01-391-1556 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Mon, Jun 6, 1994