5306-01-256-6847

Find complete technical information, availability, and procurement data for: 5306-01-256-6847
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-256-6847

Item Name Code

15903

Assigment Date

06/08/1987 (39 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

double hexagon extended washer head style, 0.736 inches minimum and 0.786 inches maximum thread length, 3.809 inches minimum and 3.839 inches maximum fastener length, right-hand thread direction, 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: 0.736 inches minimum and 0.786 inches maximum
Fastener Length: 3.809 inches minimum and 3.839 inches maximum
Head Style: double hexagon extended washer
Head Height: 0.494 inches minimum and 0.514 inches maximum
Width Between Flats: 0.553 inches minimum and 0.564 inches maximum
Extended Washer Diameter: 0.818 inches minimum and 0.828 inches maximum
Extended Washer Thickness: 0.113 inches minimum and 0.133 inches maximum
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 3.053 inches minimum and 3.307 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: nas 672 assn std 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
20-071-8-49H	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-256-6847?

The FSCG of the NSN 5306-01-256-6847 is 5306

Does the NSN 5306-01-256-6847 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-256-6847 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 5306-01-256-6847 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-256-6847 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 5306-01-256-6847 was assigned to the Federal Catalog?

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