74328-6-21

View detailed technical data, stock status, and sourcing information for: 74328-6-21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-607-1146

Item Name Code

27851

Assigment Date

01/25/1975 (51 years ago)

1.911 inches minimum and 1.941 inches maximum fastener length, right-hand thread direction, 3a thread class, 0.589 inches minimum and 0.639 inches maximum thread length, double hexagon w/hole 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 Class: 3a
Thread Direction: right-hand
Thread Length: 0.589 inches minimum and 0.639 inches maximum
Fastener Length: 1.911 inches minimum and 1.941 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.378 inches minimum and 0.398 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Extended Washer Diameter: 0.639 inches minimum and 0.649 inches maximum
Extended Washer Thickness: 0.081 inches minimum and 0.101 inches maximum
Grip Diameter: 0.3740 inches minimum and 0.3745 inches maximum
Nominal Thread Diameter: 0.375 inches
Grip Length: 1.302 inches minimum and 1.322 inches maximum
Thread Quantity Per Inch: 24
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: passivate 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:

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74328-6-21	Close Tolerance Bolt
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BM3326-6-21	Close Tolerance Bolt
MB84-6-21	Close Tolerance Bolt
S11-1059-6-21	Close Tolerance Bolt
S371-6-21	Close Tolerance Bolt
ST3M571-6-21	Close Tolerance Bolt
VAL23033-6-21	Close Tolerance Bolt
VS3060-6-21	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-607-1146?

The FSCG of the NSN 5306-00-607-1146 is 5306

Does the NSN 5306-00-607-1146 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-607-1146 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 5306-00-607-1146 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-607-1146 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 5306-00-607-1146 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sat, Jan 25, 1975