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Datasheet. 72839-2 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
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.
0.39in. and 0.45in. ⁓29/64"
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
1.632in. and 1.692in. ⁓1-45/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.32in. and 0.38in. ⁓25/64"
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.
0.6239in. and 0.6248in. first shoulder
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.
1.576in. first shoulder
The number of hole threads per linear inch measured on a line parallel to the thread axis.
24
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.
round first shoulder
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unjf
Answers.
Unjf
Hexagon
0.39 inches minimum and 0.45 inches maximum
Right-hand
3a
FSC 5306 ⁓ Bolts
NSN 5306-01-187-0636 BOLT,SHOULDER
unjf thread series hexagon head style 0.39" thread length right-hand 3a thread class
- NIIN
- 011870636
- NIIN Date
- 10/23/13
- Schedule B
- Name Code
- 04905
- FIIG
- A003B0
- DEMIL / ITAR
- Uncontrolled item (Code )
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- --
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
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72839-2 / Bolt,shoulderWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. it has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. the head is not designed to be held or driven with an inserted drivers. a locking feature may be incorporated in the design of the head or threads. for items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. for items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. excludes thumbscrew.
