MS51831CA203L

View detailed technical data, stock status, and sourcing information for: MS51831CA203L
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-01-113-0926

Item Name Code

11444

Assigment Date

05/15/1981 (45 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

right-hand thread direction, 0.422 inches minimum and 0.452 inches maximum length, 1/2-13 unc 2a insert size, 0.367 inches nominal thread 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: 0.422 inches minimum and 0.452 inches maximum
Insert Size: 1/2-13 unc 2a
Internal Thread Relief Depth: 0.060 inches minimum and 0.080 inches maximum
Full Internal Thread Length: 0.342 inches minimum and 0.392 inches maximum
Features Provided: individually keyed
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.3125 inches
Special Features: dry film lubricant. item has internal thread lock feature.
Material: steel corrosion resisting overall
Material Document And Classification: ams 5734 assn std single material response or ams 5737 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: keylock
Thread Series Designator: unjf

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
5325PL0162673	Screw Thread Insert
KNH524JT-DFL	Screw Thread Insert
KNHL524JT	Screw Thread Insert
MS51831CA203	Screw Thread Insert
MS51831CA203L	Screw Thread Insert
NAS1395CA5L	Screw Thread Insert

FAQs

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

What is the FSCG of the NSN 5325-01-113-0926?

The FSCG of the NSN 5325-01-113-0926 is 5325

Does the NSN 5325-01-113-0926 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-01-113-0926 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 5325-01-113-0926 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-01-113-0926 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 5325-01-113-0926 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Fri, May 15, 1981