5306-00-721-5944

Find complete technical information, availability, and procurement data for: 5306-00-721-5944
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-721-5944

Item Name Code

15939

Assigment Date

01/01/1963 (63 years ago)

button head style, 0.969 inches minimum and 1.031 inches maximum fastener length, right-hand thread direction, 2a thread class, 0.875 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: 0.875 inches minimum
Fastener Length: 0.969 inches minimum and 1.031 inches maximum
Head Style: button
Head Diameter: 0.688 inches minimum and 0.719 inches maximum
Head Height: 0.156 inches minimum and 0.176 inches maximum
Neck Length: 0.156 inches minimum and 0.187 inches maximum
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 55000 pounds per square inch
Hardness Rating: 95.0 rockwell b maximum overall
Neck Width: 0.307 inches minimum and 0.324 inches maximum
Material: steel overall
Material Document And Classification: sae gr 1 assn std single material response overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec 1st treatment response or qq-z-325,ty 2,cl 3 fed spec 2nd treatment response 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Below is a list of NSNs that have been officially superseded by this NSN: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
5306-00-010-9101	No Name Available	12/01/1979
5306-00-012-6353	Square Neck Bolt	07/01/2025
5306-00-012-6360	No Name Available	08/01/1979
5306-00-054-8019	Square Neck Bolt	07/01/2025
5306-00-059-1232	No Name Available	08/01/1979
5306-00-265-0758	No Name Available	01/01/1987
5306-00-265-0849	No Name Available	09/01/2023
5306-00-481-6335	No Name Available	03/01/1971

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
5306007215944	Square Neck Bolt
MS35751-41	Square Neck Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-721-5944?

The FSCG of the NSN 5306-00-721-5944 is 5306

Does the NSN 5306-00-721-5944 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-721-5944 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 5306-00-721-5944 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-721-5944 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 5306-00-721-5944 was assigned to the Federal Catalog?

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