GB840U1

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-143-0738

Item Name Code

11444

Assigment Date

12/20/1968 (57 years ago)

A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled, tapped or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. It is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). The internal thread of the item may have a locking feature. Excludes:items having a sleeve on on its under portion which can be clinched or crimped. Excludes:bushing,machine thread; nut,plain,knurled; nut,plain,round; nut,plain,clinch and nut,self-locking,clinch. See also nut,plain,plate

0.375-32 unef class 2a insert size, copper alloy overall material, 0.062 inches nominal flange thickness, 0.500 inches nominal width across flats, 0.267 inches minimum and 0.297 inches maximum length

Product Characteristics

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

Flange Thickness: 0.062 inches nominal
Length: 0.267 inches minimum and 0.297 inches maximum
Width Across Flats: 0.500 inches nominal
Insert Size: 0.375-32 unef class 2a
Material: copper alloy overall
Style Designator: flange

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
70-757712-1	Screw Thread Insert
AK771	Screw Thread Insert
GB840U1	Screw Thread Insert

FAQs

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

What is the FSCG of the NSN 5325-00-143-0738?

The FSCG of the NSN 5325-00-143-0738 is 5325

Does the NSN 5325-00-143-0738 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-143-0738 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 5325-00-143-0738 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-143-0738 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 5325-00-143-0738 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Dec 20, 1968