5306-01-021-3756

Find complete technical information, availability, and procurement data for: 5306-01-021-3756
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-021-3756

Item Name Code

15903

Assigment Date

05/15/1976 (50 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.475 inches minimum and 0.525 inches maximum thread length, right-hand thread direction, 3a thread class, 1.485 inches minimum and 1.515 inches maximum fastener length, double hexagon w/hole 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: 0.475 inches minimum and 0.525 inches maximum
Fastener Length: 1.485 inches minimum and 1.515 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.290 inches minimum and 0.310 inches maximum
Width Between Flats: 0.306 inches minimum and 0.315 inches maximum
Extended Washer Diameter: 0.433 inches nominal
Extended Washer Thickness: 0.059 inches minimum and 0.079 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 180000 pounds per square inch
Material: steel overall
Thread Series Designator: unf

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
GY184-16	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-021-3756?

The FSCG of the NSN 5306-01-021-3756 is 5306

Does the NSN 5306-01-021-3756 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-021-3756 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 5306-01-021-3756 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-021-3756 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 5306-01-021-3756 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, May 15, 1976