12759-00621

View detailed technical data, stock status, and sourcing information for: 12759-00621
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-557-0509

Item Name Code

01847

Assigment Date

10/11/2007 (18 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.

1.250 inches nominal thread length, right-hand thread direction, 0.302 inches minimum and 0.323 inches maximum head height, 4.400 inches minimum and 4.500 inches maximum fastener length, 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 Direction: right-hand
Thread Length: 1.250 inches nominal
Fastener Length: 4.400 inches minimum and 4.500 inches maximum
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Grip Diameter: 0.493 inches minimum and 0.500 inches maximum
End Item Identification: mrap - unique nsn - used on 3 mrap variants
Nominal Thread Diameter: 0.500 inches
Grip Length: 3.250 inches nominal
Thread Quantity Per Inch: 20
Special Features: "1/2"-20 x 4-1/2" grade 5 zinc plated hex cap screw"
Material: steel overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: sae j429, gr5 assn std single treatment response overall
Thread Series Designator: unf

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
10003167	Machine Bolt
12759-00621	Machine Bolt
AES01F500D50WA2D71	Machine Bolt
T3099	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-557-0509?

The FSCG of the NSN 5306-01-557-0509 is 5306

Does the NSN 5306-01-557-0509 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-557-0509 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 5306-01-557-0509 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-557-0509 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 5306-01-557-0509 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Thu, Oct 11, 2007