5306-00-021-8187

Find complete technical information, availability, and procurement data for: 5306-00-021-8187
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-021-8187

Item Name Code

15939

Assigment Date

01/01/1963 (63 years ago)

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

2a thread class, flat countersunk head style, right-hand thread direction, 2.375 inches minimum and 2.625 inches maximum fastener length, 1.750 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: 1.750 inches minimum
Fastener Length: 2.375 inches minimum and 2.625 inches maximum
Head Style: flat countersunk
Head Diameter: 1.219 inches minimum and 1.303 inches maximum
Neck Length: 0.491 inches minimum and 0.541 inches maximum
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 10
Minimum Yield Strength: 40000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Neck Width: 0.750 inches minimum and 0.765 inches maximum
Material: steel overall
Material Document And Classification: qq-s-633,canc fed spec single material response overall
Thread Series Designator: unc

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
7327653	Square Neck Bolt
MS35754-58	Square Neck Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-021-8187?

The FSCG of the NSN 5306-00-021-8187 is 5306

Does the NSN 5306-00-021-8187 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-021-8187 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 5306-00-021-8187 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-021-8187 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 5306-00-021-8187 was assigned to the Federal Catalog?

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