256-057-04

View detailed technical data, stock status, and sourcing information for: 256-057-04
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-673-6150

Item Name Code

18421

Assigment Date

03/23/1967 (59 years ago)

stud shank turnlock stud shank style, ring securing device type, 0.490 inches minimum and 0.500 inches maximum diameter, flat countersunk turnlock stud head style, 0.522 inches minimum and 0.538 inches maximum grip length

Product Characteristics

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

Grip Length: 0.522 inches minimum and 0.538 inches maximum
Diameter: 0.490 inches minimum and 0.500 inches maximum
Securing Device Type: ring
Turnlock Stud Shank Style: stud shank
Turnlock Stud Head Style: flat countersunk
Material Accommodated Thickness: 0.258 inches minimum and 0.321 inches maximum
Drive Type: cross recess
Shank Neck Length: 0.404 inches minimum and 0.420 inches maximum
Stud Shank Major Diameter: 0.243 inches maximum
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 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
256-057-04	Turnlock Fastener Stud
S4650F1-28	Turnlock Fastener Stud

FAQs

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

What is the FSCG of the NSN 5325-00-673-6150?

The FSCG of the NSN 5325-00-673-6150 is 5325

Does the NSN 5325-00-673-6150 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-673-6150 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 5325-00-673-6150 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-673-6150 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 5325-00-673-6150 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Thu, Mar 23, 1967