5325-00-638-5371

Find complete technical information, availability, and procurement data for: 5325-00-638-5371
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-638-5371

Item Name Code

18421

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

0.440 inches nominal grip length, fillister turnlock stud head style, stud shank turnlock stud shank style, 0.291 inches minimum and 0.300 inches maximum material accommodated thickness, 0.312 inches nominal diameter

Product Characteristics

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

Grip Length: 0.440 inches nominal
Diameter: 0.312 inches nominal
Turnlock Stud Shank Style: stud shank
Turnlock Stud Head Style: fillister
Material Accommodated Thickness: 0.291 inches minimum and 0.300 inches maximum
Drive Type: slotted
Stud Shank Major Diameter: 0.172 inches nominal
Material: steel overall
Surface Treatment: cadmium 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
98293-3-300	Turnlock Fastener Stud

FAQs

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

What is the FSCG of the NSN 5325-00-638-5371?

The FSCG of the NSN 5325-00-638-5371 is 5325

Does the NSN 5325-00-638-5371 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-638-5371 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 5325-00-638-5371 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-638-5371 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 5325-00-638-5371 was assigned to the Federal Catalog?

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