5306-00-089-0176

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-089-0176

Item Name Code

15939

Assigment Date

01/01/1961 (64 years ago)

A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

7.906 inches minimum and 8.094 inches maximum fastener length, right-hand thread direction, 1.500 inches minimum thread length, 2a thread class, button head style

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 1.500 inches minimum
Fastener Length: 7.906 inches minimum and 8.094 inches maximum
Head Style: button
Head Diameter: 1.032 inches minimum and 1.094 inches maximum
Head Height: 0.250 inches minimum and 0.270 inches maximum
Neck Length: 0.250 inches minimum and 0.281 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 55000 pounds per square inch
Hardness Rating: 95.0 rockwell b maximum overall
Neck Width: 0.492 inches minimum and 0.515 inches maximum
Material: steel overall
Material Document And Classification: sae gr 1 assn std single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: astm-b633 assn std single treatment response overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially replaced by the NSN 5306-00-089-0176

NSN	Name	Date
5306-00-059-1279	Square Neck Bolt	07/01/2025
5306-00-248-8685	No Name Available	06/29/2023
5306-00-576-0917	No Name Available	07/01/1977

Related Parts & Specifications

This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.

Part Number	Name
MS35751-143	Square Neck Bolt

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 5306-00-089-0176

What is the FSCG of the NSN 5306-00-089-0176?

The FSCG of the NSN 5306-00-089-0176 is 5306

Does the NSN 5306-00-089-0176 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-089-0176 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 5306-00-089-0176 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-089-0176 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 5306-00-089-0176 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Sun, Jan 1, 1961