BACS21Z4W

View detailed technical data, stock status, and sourcing information for: BACS21Z4W
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-890-0032

Item Name Code

18484

Assigment Date

01/01/1962 (64 years ago)

stud assembly stud assembly style, 0.720 inches nominal head length, washer securing device type, 0.341 inches minimum and 0.351 inches maximum distance from engaging member to largest bearing surface of head, flat fillister wing turnlock stud head style

Product Characteristics

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

Head Length: 0.720 inches nominal
Securing Device Type: washer
Turnlock Stud Head Style: flat fillister wing
Stud Assembly Style: stud assembly
Distance From Engaging Member To Largest Bearing Surface Of Head: 0.341 inches minimum and 0.351 inches maximum
Eyelet Outside Diameter: 0.519 inches minimum and 0.531 inches maximum
Stud Diameter: 0.305 inches minimum and 0.315 inches maximum
Material Accommodated Thickness: 0.120 inches minimum and 0.149 inches maximum
Stud Head Height: 0.174 inches minimum and 0.186 inches maximum
Material: steel comp 305 or steel comp 304 or steel comp 302 top
Material: steel comp 4037 stud
Material: steel ejector spring
Material: steel pin
Surface Treatment: cadmium and chromate pin
Surface Treatment: cadmium and chromate stud
Surface Treatment: passivate top

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5325-00-589-3582	No Name Available	01/01/1960

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
10033220-3	Turnlock Fastener Stud Assembly
28S7-4	Turnlock Fastener Stud Assembly
BACS21Z4W	Turnlock Fastener Stud Assembly

FAQs

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

What is the FSCG of the NSN 5325-00-890-0032?

The FSCG of the NSN 5325-00-890-0032 is 5325

Does the NSN 5325-00-890-0032 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-890-0032 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 5325-00-890-0032 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-890-0032 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 5325-00-890-0032 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962