73991H-4D14

View detailed technical data, stock status, and sourcing information for: 73991H-4D14
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-087-4829

Item Name Code

15903

Assigment Date

12/19/1979 (46 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.2485 inches minimum and 0.2495 inches maximum grip diameter, 0.116 inches nominal thread length, right-hand thread direction, 1.168 inches nominal fastener 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: 0.116 inches nominal
Fastener Length: 1.168 inches nominal
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Single Shear Strength: 132000 pounds per square inch
Grip Length: 0.875 inches nominal
Hardness Rating: 46.0 rockwell c nominal and 50.0 rockwell c maximum overall
Material: steel overall
Surface Treatment: cadmium overall
Thread Series Designator: unjf

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
73991H-4D14	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-087-4829?

The FSCG of the NSN 5306-01-087-4829 is 5306

Does the NSN 5306-01-087-4829 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-087-4829 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 5306-01-087-4829 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-087-4829 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 5306-01-087-4829 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Wed, Dec 19, 1979