15-066939-056

View detailed technical data, stock status, and sourcing information for: 15-066939-056
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-451-1623

Item Name Code

41756

Assigment Date

05/12/1971 (55 years ago)

hexagon extended washer head style, 0.302 inches minimum and 0.328 inches maximum extended washer diameter, 0.312 inches nominal fastener length, 0.244 inches minimum and 0.250 inches maximum width between flats, 0.105 inches minimum and 0.108 inches maximum head height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Fastener Length: 0.312 inches nominal
Head Style: hexagon extended washer
Head Height: 0.105 inches minimum and 0.108 inches maximum
Width Between Flats: 0.244 inches minimum and 0.250 inches maximum
Extended Washer Diameter: 0.302 inches minimum and 0.328 inches maximum
Extended Washer Thickness: 0.015 inches minimum and 0.025 inches maximum
Internal Drive Style: slot
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Nonmachine Nominal Thread Diameter: 0.138 inches
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response overall

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
15-066939-056	Tapping Screw
6AX257	Tapping Screw
73543	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-00-451-1623?

The FSCG of the NSN 5305-00-451-1623 is 5305

Does NSN 5305-00-451-1623 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 5305-00-451-1623 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-451-1623 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 5305-00-451-1623 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, May 12, 1971