B1821BH031C113L

View detailed technical data, stock status, and sourcing information for: B1821BH031C113L
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-253-4427

Item Name Code

01847

Assigment Date

04/18/1987 (39 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

right-hand thread direction, 0.874 inches minimum and 1.061 inches maximum thread length, 1.063 inches minimum and 1.125 inches maximum fastener length, 2a thread class, hexagon head style

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.874 inches minimum and 1.061 inches maximum
Fastener Length: 1.063 inches minimum and 1.125 inches maximum
Head Style: hexagon
Head Height: 0.195 inches minimum and 0.211 inches maximum
Width Between Flats: 0.489 inches minimum and 0.500 inches maximum
Locking Feature: patch or strip threads
Nominal Thread Diameter: 0.312 inches
Features Provided: finished head
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 150000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 8 assn std all material responses overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: astm b633 ty 2 sc 3 assn std single treatment response overall
Thread Series Designator: unc

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
AEB02C312A12AW9A96	Machine Bolt
B1821BH031C113L	Machine Bolt
MS90728-35L	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-253-4427?

The FSCG of the NSN 5306-01-253-4427 is 5306

Does the NSN 5306-01-253-4427 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-253-4427 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 5306-01-253-4427 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-253-4427 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 5306-01-253-4427 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sat, Apr 18, 1987