Model: MS51993

Screw Thread Insert

Properties:

Thread Class
3b
Thread Direction
Right-hand
Thread Length
0.693 inches
Length
Between 0.928 inches and 0.968 inches
Insert Size
7/8-14 unf; 0.8291 min. And 0.8316 max pitch dia
Thready Qty Per Inch (tpi)
20
Thread Size
0.5000 inches
Material
Steel comp 4140
Material Specification
Mil-s-5626 military specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Serrated
Thread Series Designator
Unjf
Specification Data
96906-ms51993 government standard
NSN
5325-01-467-2335
Part Number
MS51993
Description
Insert,screw Thread
CAGE

A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled 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 its underportion 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.

Part MS51993 NSN 5325-01-467-2335

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
11444
FIIG:
A03100
Concept No.:
App. Key:
AP
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 9606100000
  • SITC: 89983
  • End Use: Finished textile supplies
  • NAICS: 339993
  • USDA: 1

Freight Class: Press-fasteners, snap-fasteners & press-studs & parts therefor

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