5306-01-021-4557

Find complete technical information, availability, and procurement data for: 5306-01-021-4557
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-021-4557

Item Name Code

06666

Assigment Date

05/17/1976 (50 years ago)

3a thread class, 1.375 inches nominal fastener length, 0.500 inches nominal thread length, bevel-conical head style, 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: 3a
Thread Direction: right-hand
Thread Length: 0.500 inches nominal
Fastener Length: 1.375 inches nominal
Head Style: bevel-conical
Head Diameter: 0.430 inches minimum and 0.438 inches maximum
Head Height: 0.226 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.219 inches minimum and 0.221 inches maximum
Thread Quantity Per Inch: 28
Material: steel comp 8740 overall
Material Document And Classification: mil-s-6049 mil spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec 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
NAS144-22	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-021-4557?

The FSCG of the NSN 5306-01-021-4557 is 5306

Does the NSN 5306-01-021-4557 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-021-4557 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 5306-01-021-4557 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-021-4557 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 5306-01-021-4557 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Mon, May 17, 1976