40S5-4

View detailed technical data, stock status, and sourcing information for: 40S5-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-639-7954

Item Name Code

18484

Assigment Date

01/01/1963 (63 years ago)

stud assembly stud assembly style, 0.377 inches minimum and 0.384 inches maximum diameter, 0.341 inches minimum and 0.348 inches maximum eyelet outside diameter, stud head turnlock stud head style, 0.433 inches minimum and 0.443 inches maximum distance from engaging member to largest bearing surface of head

Product Characteristics

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

Diameter: 0.377 inches minimum and 0.384 inches maximum
Turnlock Stud Head Style: stud head
Stud Assembly Style: stud assembly
Distance From Engaging Member To Largest Bearing Surface Of Head: 0.433 inches minimum and 0.443 inches maximum
Eyelet Outside Diameter: 0.341 inches minimum and 0.348 inches maximum
Eyelet Length: 0.257 inches nominal
Material Accommodated Thickness: 0.141 inches minimum and 0.170 inches maximum
Drive Type: cross recess
Stud Head Height: 0.102 inches nominal
Material: steel comp 1009 or steel comp 1050 or steel comp 1112 eyelet
Material: steel comp 4037 stud
Material: steel ejector spring
Material: steel pin
Material Document And Classification: qq-w-470 fed spec single material response ejector spring
Material Document And Classification: qq-w-470 fed spec single material response pin
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec 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Below is a list of NSNs that have been officially superseded by this NSN: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
5307-00-369-2713	No Name Available	03/11/1966

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
1142005-4	Turnlock Fastener Stud Assembly
12861-899-29	Turnlock Fastener Stud Assembly
40S5	Turnlock Fastener Stud Assembly
40S5-4	Turnlock Fastener Stud Assembly
5325PL0952442	Turnlock Fastener Stud Assembly
BACS21ED4R	Turnlock Fastener Stud Assembly
BACS21X4R	Turnlock Fastener Stud Assembly

FAQs

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

What is the FSCG of the NSN 5325-00-639-7954?

The FSCG of the NSN 5325-00-639-7954 is 5325

Does the NSN 5325-00-639-7954 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-639-7954 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 5325-00-639-7954 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-639-7954 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 5325-00-639-7954 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963