5306-01-046-3257

Find complete technical information, availability, and procurement data for: 5306-01-046-3257
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-046-3257

Item Name Code

27851

Assigment Date

08/15/1977 (49 years ago)

0.282 inches minimum and 0.333 inches maximum thread length, 2.793 inches minimum and 2.813 inches maximum fastener length, 3a thread class, right-hand thread direction, undercut hexagon 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: 0.282 inches minimum and 0.333 inches maximum
Fastener Length: 2.793 inches minimum and 2.813 inches maximum
Head Style: undercut hexagon
Head Height: 0.126 inches minimum and 0.141 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Grip Diameter: 0.2483 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter: 0.250 inches
Grip Length: 2.375 inches minimum and 2.391 inches maximum
Thread Quantity Per Inch: 28
Hardness Rating: 36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.693 inches minimum and 2.723 inches maximum first hole
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Special Features: retaining ring on shank
Material: steel comp e4340 or steel comp 4340 or steel comp 8740 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response overall
Thread Series Designator: unjf

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
121673-4-38	Close Tolerance Bolt
ST3M735-4-38	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-046-3257?

The FSCG of the NSN 5306-01-046-3257 is 5306

Does the NSN 5306-01-046-3257 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-046-3257 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 5306-01-046-3257 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-046-3257 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 5306-01-046-3257 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Mon, Aug 15, 1977