5306-00-660-2091

Find complete technical information, availability, and procurement data for: 5306-00-660-2091
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-660-2091

Item Name Code

06675

Assigment Date

01/01/1963 (63 years ago)

3a thread class, hexagon head style, 0.325 inches minimum and 0.385 inches maximum thread length, right-hand thread direction, 0.980 inches minimum and 1.020 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: 0.325 inches minimum and 0.385 inches maximum
Fastener Length: 0.980 inches minimum and 1.020 inches maximum
Head Style: hexagon
Head Height: 0.115 inches minimum and 0.125 inches maximum
Width Between Flats: 0.312 inches nominal
First Diameter From Head: 0.185 inches minimum and 0.190 inches maximum
Second Diameter From Head: 0.133 inches minimum and 0.138 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.240 inches minimum and 0.260 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 0.635 inches minimum and 0.655 inches maximum
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Externally Relieved Body Diameter Quantity: 2
Material: steel comp 4130 overall
Surface Treatment: cadmium 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
375089	Externally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-660-2091?

The FSCG of the NSN 5306-00-660-2091 is 5306

Does the NSN 5306-00-660-2091 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-660-2091 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 5306-00-660-2091 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-660-2091 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 5306-00-660-2091 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963