5325-00-421-6656

Find complete technical information, availability, and procurement data for: 5325-00-421-6656
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-421-6656

Item Name Code

18421

Assigment Date

12/09/1970 (55 years ago)

stud shank turnlock stud shank style, 0.560 inches nominal diameter, 0.637 inches minimum and 0.647 inches maximum grip length, flat countersunk turnlock stud head style, 0.431 inches minimum and 0.440 inches maximum material accommodated thickness

Product Characteristics

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

Grip Length: 0.637 inches minimum and 0.647 inches maximum
Diameter: 0.560 inches nominal
Turnlock Stud Shank Style: stud shank
Turnlock Stud Head Style: flat countersunk
Material Accommodated Thickness: 0.431 inches minimum and 0.440 inches maximum
Drive Type: slotted
Stud Shank Major Diameter: 0.262 inches minimum and 0.267 inches maximum
Material: steel comp 1010 overall
Material Document And Classification: 66 fed std single material response overall
Surface Treatment: aluminum overall
Surface Treatment Document And Classification: ps13143,cl 3,ty 2,cagec 76301 mfr ref single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5325-00-297-9664	No Name Available	05/01/1984

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
9MA150F5-4-450	Turnlock Fastener Stud
9MER150F5-4-4-5	Turnlock Fastener Stud
9MFR150F5-4-4-50	Turnlock Fastener Stud

FAQs

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

What is the FSCG of the NSN 5325-00-421-6656?

The FSCG of the NSN 5325-00-421-6656 is 5325

Does the NSN 5325-00-421-6656 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-421-6656 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 5325-00-421-6656 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-421-6656 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 5325-00-421-6656 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Dec 9, 1970