90741-420-12

View detailed technical data, stock status, and sourcing information for: 90741-420-12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-040-2051

Item Name Code

06666

Assigment Date

05/04/1977 (49 years ago)

2a thread class, 0.750 inches nominal fastener length, flat chamfer head style, 0.650 inches minimum thread length, right-hand thread direction

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: 0.650 inches minimum
Fastener Length: 0.750 inches nominal
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 170000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel overall
Surface Treatment: oxide 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
10070280	Internal Wrenching Bolt
90741-420-12	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-040-2051?

The FSCG of the NSN 5306-01-040-2051 is 5306

Does the NSN 5306-01-040-2051 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-040-2051 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 5306-01-040-2051 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-040-2051 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 5306-01-040-2051 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Wed, May 4, 1977