5306-01-301-1331

Find complete technical information, availability, and procurement data for: 5306-01-301-1331
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-301-1331

Item Name Code

15903

Assigment Date

05/25/1989 (37 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

right-hand thread direction, 1.625 inches nominal fastener length, double hexagon head style, 1.000 inches nominal thread length, 3a thread class

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: 1.000 inches nominal
Fastener Length: 1.625 inches nominal
Head Style: double hexagon
Head Height: 0.271 inches minimum and 0.291 inches maximum
Width Between Flats: 0.741 inches minimum and 0.752 inches maximum
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Nominal Thread Diameter: 0.5000 inches
Grip Length: 0.615 inches minimum and 0.635 inches maximum
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel overall
Material Document And Classification: mil-s-5000 mil spec single material response or ams6485 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty ii fed spec single treatment response overall
Thread Series Designator: uns

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-01-102-2683	No Name Available	02/01/1993

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
76683-8-10	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-301-1331?

The FSCG of the NSN 5306-01-301-1331 is 5306

Does the NSN 5306-01-301-1331 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-301-1331 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 5306-01-301-1331 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-301-1331 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 5306-01-301-1331 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, May 25, 1989