5306-00-302-8637

Find complete technical information, availability, and procurement data for: 5306-00-302-8637
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-302-8637

Item Name Code

06675

Assigment Date

01/01/1963 (63 years ago)

0.300 inches minimum and 0.330 inches maximum thread length, flat chamfer head style, 3a thread class, 1.880 inches nominal fastener 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: 3a
Thread Direction: right-hand
Thread Length: 0.300 inches minimum and 0.330 inches maximum
Fastener Length: 1.880 inches nominal
Head Style: flat chamfer
Head Diameter: 0.490 inches minimum and 0.519 inches maximum
Head Height: 0.120 inches nominal
Shank Unthreaded Hole Diameter: 0.073 inches nominal first hole
First Diameter From Head: 0.344 inches minimum and 0.345 inches maximum
Second Diameter From Head: 0.341 inches minimum and 0.342 inches maximum
Third Diameter From Head: 0.240 inches nominal
Fourth Diameter From Head: 0.305 inches minimum and 0.312 inches maximum
Fifth Diameter From Head: 0.240 inches nominal
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.265 inches minimum and 0.305 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 0.275 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Third Diameter: 0.855 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter: 1.850 inches nominal
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.760 inches nominal first hole
Externally Relieved Body Diameter Quantity: 5
Material: steel comp 4140 or steel comp 8740 overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-033-0348	No Name Available	01/01/1963

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
138912	Externally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-302-8637?

The FSCG of the NSN 5306-00-302-8637 is 5306

Does the NSN 5306-00-302-8637 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-302-8637 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 5306-00-302-8637 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-302-8637 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 5306-00-302-8637 was assigned to the Federal Catalog?

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