5306-00-256-8682

Find complete technical information, availability, and procurement data for: 5306-00-256-8682
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-256-8682

Item Name Code

15903

Assigment Date

06/20/1973 (53 years ago)

A clamp specifically designed to hold an electrical cable firmly in a connector. Must include provisions for attachment to an electrical connector. Excludes:adapter (1), cable to connector.

double hexagon w/hole head style, 3a thread class, 1.505 inches minimum and 1.722 inches maximum thread length, right-hand thread direction, 7.807 inches minimum and 7.837 inches maximum fastener 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: 3a
Thread Direction: right-hand
Thread Length: 1.505 inches minimum and 1.722 inches maximum
Fastener Length: 7.807 inches minimum and 7.837 inches maximum
Head Style: double hexagon w/hole
Head Height: 1.145 inches minimum and 1.165 inches maximum
Width Between Flats: 1.308 inches minimum and 1.318 inches maximum
Extended Washer Diameter: 2.115 inches minimum and 2.125 inches maximum
Extended Washer Thickness: 0.259 inches minimum and 0.279 inches maximum
Grip Diameter: 1.2475 inches minimum and 1.2490 inches maximum
Nominal Thread Diameter: 1.250 inches
Grip Length: 6.115 inches minimum and 6.135 inches maximum
Thread Quantity Per Inch: 12
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 6150 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response or mil-s-8503 mil spec 4th material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: nas 672 assn std single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas640 professional/industrial association standard

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
NAS640-98	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-256-8682?

The FSCG of the NSN 5306-00-256-8682 is 5306

Does the NSN 5306-00-256-8682 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-256-8682 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 5306-00-256-8682 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-256-8682 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 5306-00-256-8682 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, Jun 20, 1973