5306-01-256-6828

Find complete technical information, availability, and procurement data for: 5306-01-256-6828
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-256-6828

Item Name Code

06675

Assigment Date

06/08/1987 (39 years ago)

A hardened cylindrical fastener with multiple spiral flutes on its shank. It also has an end smaller in diameter than the outside diameter of the spiral flutes, which acts as a pilot when driven into a drilled hole.

1.810 inches minimum and 1.840 inches maximum fastener length, undercut hexagon head style, 0.165 inches minimum and 0.205 inches maximum thread length, 3a thread class, 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: 0.165 inches minimum and 0.205 inches maximum
Fastener Length: 1.810 inches minimum and 1.840 inches maximum
Head Style: undercut hexagon
Head Height: 0.188 inches nominal
Width Between Flats: 0.750 inches nominal
Shank Unthreaded Hole Diameter: 0.106 inches minimum and 0.116 inches maximum first hole
First Diameter From Head: 0.438 inches nominal
Second Diameter From Head: 0.397 inches minimum and 0.399 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.935 inches minimum and 0.945 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 0.438 inches nominal
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.635 inches minimum and 1.645 inches maximum first hole
Externally Relieved Body Diameter Quantity: 2
Special Features: organic finish on shank,s2 ty 1 per bps 4310
Material: steel comp 4140 or steel comp 4340 overall
Material Document And Classification: mil-s-5626 cond c4 mil spec 1st material response or mil-s-5000 cond c4 mil spec 2nd material 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
209-076-345-3	Externally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-256-6828?

The FSCG of the NSN 5306-01-256-6828 is 5306

Does the NSN 5306-01-256-6828 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-256-6828 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 5306-01-256-6828 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-256-6828 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 5306-01-256-6828 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Mon, Jun 8, 1987