20-057-12-131D

View detailed technical data, stock status, and sourcing information for: 20-057-12-131D
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-412-6056

Item Name Code

15903

Assigment Date

04/23/1995 (31 years ago)

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. The maximum diameter of the unthreaded portion must not be greater than the nominal thread diameter plus 0.020 inches (0.508 mm). The unthreaded portion must be without locking or wrenching provisions. It may be thread relieved. See also rod, threaded end and rod, continuous thread.

3a thread class, right-hand thread direction, hexagon head style, 0.627 inches nominal thread length, 8.173 inches minimum and 8.203 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: 0.627 inches nominal
Fastener Length: 8.173 inches minimum and 8.203 inches maximum
Head Style: hexagon
Head Height: 0.375 inches minimum and 0.390 inches maximum
Width Between Flats: 1.062 inches minimum and 1.064 inches maximum
Grip Diameter: 0.748 inches minimum and 0.749 inches maximum
Shank Unthreaded Hole Diameter: 0.141 inches minimum and 0.151 inches maximum threads
Nominal Thread Diameter: 0.750 inches
Grip Length: 1.178 inches minimum and 1.198 inches maximum
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 8.549 inches minimum and 8.577 inches maximum threads
Material: steel overall
Material Document And Classification: mil-b-7838 mil spec all material responses overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, type 2, class 2 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
20-057-12-131D	Shear Bolt
20-057-12-13D	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-412-6056?

The FSCG of the NSN 5306-01-412-6056 is 5306

Does the NSN 5306-01-412-6056 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-412-6056 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 5306-01-412-6056 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-412-6056 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 5306-01-412-6056 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Sun, Apr 23, 1995