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Datasheet. 4191507 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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.
3.000in. ⁓3-1/64"
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.
3.000in. ⁓3-1/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
thumb no. 4
A measurement from the bottom to the top of the head,in distinction from depth.
0.810in. ⁓13/16"
1.120in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.375in. ⁓3/8"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
16
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
SELF-Locking element MIL-F-18240 in threads 1.750 in. from point
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
MIL-S-46172 comp 1010-1025 mil spec single material response
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
Answers.
Unc
Steel
16
Thumb no. 4
3.000 inches
Right-hand
2a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-057-6682 THUMBSCREW
unc thread series self-locking element mil-f-18240 in threads 1.750 in. from point 16 thread quantity per inch thumb no. 4 head style 3.000" thread length right-hand 2a thread class
- NIIN
- 010576682
- NIIN Date
- 03/17/78
- Schedule B
- 7318152000
- Name Code
- 06673
- FIIG
- A003B0
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Malaysia
- - Netherlands
- - Turkey
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4191507 / ThumbscrewWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter. it may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. it has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. for items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
