65A81B920

View detailed technical data, stock status, and sourcing information for: 65A81B920
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-080-8920

Item Name Code

16014

Assigment Date

12/15/1967 (58 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

2a thread class, 2.781 inches nominal fastener length, 0.875 inches maximum thread length, flat chamfer head style, right-hand thread direction

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 maximum
Fastener Length: 2.781 inches nominal
Head Style: flat chamfer
Head Diameter: 0.875 inches nominal
Head Height: 0.219 inches nominal
Shoulder Diameter: 0.603 inches minimum and 0.606 inches maximum first shoulder
Shoulder Length: 1.656 inches nominal first shoulder
Rib Major Diameter: 0.615 inches minimum and 0.625 inches maximum
Rib Length: 0.625 inches nominal
Distance From Largest Diameter Of Bearing Surface Of Head To Ribs: 0.063 inches nominal
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Hardness Rating: 32.0 rockwell c minimum and 36.0 rockwell c maximum overall
Shoulder Shape: ribbed first shoulder
Material: steel overall
Material Document And Classification: sae j403 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416 fed spec single treatment response 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
00801-2456	Ribbed Shoulder Bolt
65A81B920	Ribbed Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-080-8920?

The FSCG of the NSN 5306-00-080-8920 is 5306

Does the NSN 5306-00-080-8920 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-080-8920 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 5306-00-080-8920 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-080-8920 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 5306-00-080-8920 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Dec 15, 1967