MS51831-111L

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MS51831-111L
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5325 Fastening Devices
National Stock Number
5325-01-214-2899
Item Name Code
11444
Assigment Date
08/08/1985 (40 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

1.400 inches nominal thread length, 1.375-12unf-2a insert size, 1.485 inches minimum and 1.515 inches maximum length, right-hand thread direction, 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
1.400 inches nominal
Length
1.485 inches minimum and 1.515 inches maximum
Insert Size
1.375-12unf-2a
Internal Thread Relief Depth
0.090 inches minimum and 0.110 inches maximum
Full Internal Thread Length
1.375 inches minimum and 1.425 inches maximum
Features Provided
individually keyed
Thread Quantity Per Inch
8
Nominal Thread Size
1.000 inches
Special Features
has internal thread lock
Material
steel corrosion resisting overall
Material Document And Classification
ams 5640 comp 303/303e assn std single material response and astm a582 comp 303/303e assn std single material response overall
Surface Treatment
passivate overall
Surface Treatment Document And Classification
astm a380 assn std single treatment response overall
Style Designator
grooved keylock
Thread Series Designator
unjc

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
MS51831-111L Screw Thread Insert

FAQs

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

What is the FSCG of the NSN 5325-01-214-2899?
The FSCG of the NSN 5325-01-214-2899 is 5325
Does the NSN 5325-01-214-2899 have a Schedule B code assigned?
Yes, the Schedule B code is 9606100000
Does NSN 5325-01-214-2899 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 5325-01-214-2899 contain precious materials?
Item does not contain precious metal.
Does NSN 5325-01-214-2899 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 5325-01-214-2899 was assigned to the Federal Catalog?
It was assigned 40 years ago, on Thu, Aug 8, 1985

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