NAS501-4-21A

View detailed technical data, stock status, and sourcing information for: NAS501-4-21A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-853-8795

Item Name Code

01847

Assigment Date

11/30/1966 (59 years ago)

hexagon head style, 0.514 inches minimum and 0.537 inches maximum thread length, 2.140 inches minimum and 2.187 inches maximum fastener length, right-hand thread direction, 3a thread class

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: 0.514 inches minimum and 0.537 inches maximum
Fastener Length: 2.140 inches minimum and 2.187 inches maximum
Head Style: hexagon
Head Height: 0.140 inches minimum and 0.172 inches maximum
Width Between Flats: 0.428 inches minimum and 0.440 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.673 inches minimum and 1.703 inches maximum
Features Provided: finished head
Thread Quantity Per Inch: 28
Material: steel comp 321 overall
Material Document And Classification: aams 5645 assn std 1st material response or ams 5646 assn std 2nd material response or qq-s-763 cl 8 ty a fed spec all material responses 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
NAS501-4-21A	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-853-8795?

The FSCG of the NSN 5306-00-853-8795 is 5306

Does the NSN 5306-00-853-8795 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-853-8795 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 5306-00-853-8795 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-853-8795 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 5306-00-853-8795 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Nov 30, 1966