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Datasheet. 189146 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.
0.343in. and 0.360in. ⁓3/8"
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.
0.359in. and 0.391in. ⁓13/32"
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.
0.109in. ⁓7/64"
0.684in. and 0.691in.
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.062in. ⁓1/16"
0.296in. and 0.312in.
0.171in. and 0.174in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.437in. ⁓7/16"
The number of holes provided.
2
Indicates the type of hole(s) provided in the item.
drilled
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20
The style designation that most nearly corresponds to the appearance of the hole configuration.
hexagon corners
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 303 or steel comp 303se or steel comp 303 plus x
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 5640 assn std all material responses
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
concentric hole unthreaded
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unf
Answers.
Unf
Concentric hole unthreaded
Steel comp 303 or steel comp 303se or steel comp 303 plus x
20
0.062 inches
Hexagon
0.343 inches minimum and 0.360 inches maximum
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
NSN 5306-00-637-6655 BOLT,INTERNALLY RELIEVED BODY
unf thread series concentric hole unthreaded 20 thread quantity per inch 0.062" hole diameter hexagon head style 0.343" thread length right-hand 3a thread class
- NIIN
- 006376655
- NIIN Date
- 01/01/63
- Schedule B
- 7318152000
- Name Code
- 06676
- FIIG
- A003B0
- QUP
- Historical Price
- $18.53 EA
- 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
- - Greece
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189146 / Bolt,internally relieved bodyWhat is the formal definition of this item?
An externally threaded fastener whose external threaded portion is of one nominal diameter. it has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. the concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. the head is designed to be held or driven by an external and/or internal driver. for items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.
