MS51831-104L

View detailed technical data, stock status, and sourcing information for: MS51831-104L
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-005-5785

Item Name Code

11444

Assigment Date

06/23/1972 (54 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

0.367 inches nominal thread length, mrap - m-atv; a4 bradley fighting vehicle; a3 bradley fighting vehicle end item identification, right-hand thread direction, 0.500 inches nominal length, 3b thread class

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Thread Length: 0.367 inches nominal
Length: 0.500 inches nominal
End Item Identification: mrap - m-atv; a4 bradley fighting vehicle; a3 bradley fighting vehicle
Insert Size: 0.562-12 unc class 2a
Internal Thread Relief Depth: 0.060 inches minimum and 0.080 inches maximum
Full Internal Thread Length: 0.070 inches nominal
Bottom Portion Unthreaded Outside Length: 0.430 inches nominal
Features Provided: individually keyed
Thread Quantity Per Inch: 16
Nominal Thread Size: 0.375 inches
Special Features: internal thread lock
Material: steel comp 303 overall
Material Document And Classification: aisi assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Style Designator: grooved keylock
Thread Series Designator: unjc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-967-9117	No Name Available	12/01/1985

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
10008887	Screw Thread Insert
3201-16318-20-2	Screw Thread Insert
G480002-38	Screw Thread Insert
KH9005-616	Screw Thread Insert
KNHL-616	Screw Thread Insert
KNHL-616J-SC	Screw Thread Insert
KNHL616	Screw Thread Insert
KNHL616J	Screw Thread Insert
MS51831-104L	Screw Thread Insert

FAQs

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

What is the FSCG of the NSN 5325-00-005-5785?

The FSCG of the NSN 5325-00-005-5785 is 5325

Does the NSN 5325-00-005-5785 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-005-5785 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 5325-00-005-5785 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-005-5785 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 5325-00-005-5785 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Jun 23, 1972