5306-00-276-8438

Find complete technical information, availability, and procurement data for: 5306-00-276-8438
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-276-8438

Item Name Code

15939

Assigment Date

01/01/1963 (63 years ago)

2.500 inches nominal fastener length, 2a thread class, flat countersunk head style, right-hand thread direction, 1.593 inches minimum thread 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: 2a
Thread Direction: right-hand
Thread Length: 1.593 inches minimum
Fastener Length: 2.500 inches nominal
Head Style: flat countersunk
Head Diameter: 1.406 inches minimum and 1.502 inches maximum
Neck Length: 0.563 inches minimum and 0.626 inches maximum
Nominal Thread Diameter: 0.875 inches
Thread Quantity Per Inch: 9
Countersink Angle: 80.0 degrees nominal
Neck Width: 0.875 inches minimum and 0.906 inches maximum
Material: steel overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-276-8434	Square Neck Bolt	07/01/2025

FAQs

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

What is the FSCG of the NSN 5306-00-276-8438?

The FSCG of the NSN 5306-00-276-8438 is 5306

Does the NSN 5306-00-276-8438 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-276-8438 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 5306-00-276-8438 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-276-8438 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 5306-00-276-8438 was assigned to the Federal Catalog?

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