91248A540

View detailed technical data, stock status, and sourcing information for: 91248A540
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-068-0513

Item Name Code

01847

Assigment Date

01/01/1963 (63 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.

2a thread class, right-hand thread direction, hexagon head style, 0.750 inches nominal fastener length, 0.661 inches minimum and 0.750 inches maximum thread 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: 2a
Thread Direction: right-hand
Thread Length: 0.661 inches minimum and 0.750 inches maximum
Fastener Length: 0.750 inches nominal
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
End Item Identification: mrap buffalo mk2a2; multiple launch rocket system (mlrs); a4 bradley fighting vehicle; a3 bradley fighting vehicle
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Minimum Yield Strength: 120000 pounds per square inch
Material: steel overall
Material Document And Classification: sae j429 grade 8 assn std single material response 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: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-022-3639	No Name Available	01/01/2002
5305-00-032-2401	No Name Available	08/01/1995
5305-00-208-1462	Hexagon Head Cap Screw	07/01/2025
5306-00-292-8752	No Name Available	03/10/2016
5306-01-239-8561	No Name Available	02/01/1992
5305-01-283-8613	No Name Available	10/01/1990
5305-01-373-4831	No Name Available	12/01/1999

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FAQs

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

What is the FSCG of the NSN 5306-00-068-0513?

The FSCG of the NSN 5306-00-068-0513 is 5306

Does the NSN 5306-00-068-0513 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-068-0513 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 5306-00-068-0513 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-068-0513 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 5306-00-068-0513 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963