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Datasheet. MS51831A103 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3b
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.437in. ⁓7/16"
A measurement of the longest dimension of any object,in distinction from width.
0.437in.
Designates the size by which the insert is identified.
500-13 unc 2a
0.070in.
0.367in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
18
A designation that is used for the purpose of general identification of the thread.
0.312in. ⁓5/16"
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 4140
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
MIL-S-5626 mil spec single material response
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
passivate
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
QQ-P-35 fed spec single treatment response
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
keylock
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
The document designator of the specification or standard which established the item of supply.
96906-MS51831A103 government standard
Answers.
Unc
Keylock
Steel comp 4140
18
0.437 inches
Right-hand
3b
Schedule B number: 9606100000
Press-fasteners, snap-fasteners & press-studs & parts therefor
FSC 5325 ⁓ Fastening devices
NSN 5325-01-416-5882 INSERT,SCREW THREAD
unc thread series keylock passivate surface treated 18 thread quantity per inch 0.437" thread length right-hand 3b thread class
- NIIN
- 014165882
- NIIN Date
- 07/21/95
- Schedule B
- 9606100000
- Name Code
- 11444
- FIIG
- A03100
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Major End Users Countries and entities
- - Spain
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MS51831A103 / Insert,screw threadWhat is the formal definition of this item?
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.
