A51M42540-11

View detailed technical data, stock status, and sourcing information for: A51M42540-11
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-890-0905

Item Name Code

04905

Assigment Date

05/07/1972 (54 years ago)

3a thread class, right-hand thread direction, round w/wrench flats head style, 0.324 inches minimum and 0.344 inches maximum thread length, 2.693 inches minimum and 2.703 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: 0.324 inches minimum and 0.344 inches maximum
Fastener Length: 2.693 inches minimum and 2.703 inches maximum
Head Style: round w/wrench flats
Head Diameter: 0.800 inches nominal
Head Height: 0.156 inches nominal
Width Between Flats: 0.624 inches minimum and 0.634 inches maximum
Shoulder Diameter: 0.6226 inches minimum and 0.6232 inches maximum first shoulder
Shoulder Length: 2.255 inches minimum and 2.265 inches maximum first shoulder
Shank Unthreaded Hole Diameter: 0.106 inches minimum and 0.116 inches maximum first hole
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.521 inches minimum and 2.531 inches maximum first hole
Shoulder Shape: round first shoulder
Material: steel overall
Material Document And Classification: g-1010,fscm 26512 mfr ref single material response overall
Surface Treatment: cadmium 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
A51M42540-11	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-890-0905?

The FSCG of the NSN 5306-00-890-0905 is 5306

Does the NSN 5306-00-890-0905 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-890-0905 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 5306-00-890-0905 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-890-0905 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 5306-00-890-0905 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, May 7, 1972