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Datasheet. 179662 1/2 specification
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.
LEFT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
6.500in. ⁓6-1/2"
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.
21.750in. ⁓21-3/4"
A measurement from the bottom to the top of the head,in distinction from depth.
1.000in. ⁓1/64"
1.490in.
2.000in.
1.730in.
2.000in.
2.505in.
10.255in.
11.005in.
17.505in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
w/o internal drive
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
2.000in. ⁓2-1/64"
The minimum and maximum pitch diameter limits of a nonstandard straight screw thread.
+1.8402/+1.8637in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
4
The number of externally relieved diameters on the body,adjacent to the head.
4
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.
4.500 in. l x 1.000 in. dia end with 0.312 in. w x 0.188 in. d x 4.000 in. l keyway; nut INCLUDED-Dwg no. 179496 1/4
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
acme
Answers.
Acme
Steel
4
6.500 inches
Left-hand
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-124-2713 SCREW,EXTERNALLY RELIEVED BODY
acme thread series 4.500 in. l x 1.000 in. dia end with 0.312 in. w x 0.188 in. d x 4.000 in. l keyway; nut included-dwg no. 179496 1/4 4 thread quantity per inch 6.500" thread length left-hand
- NIIN
- 011242713
- NIIN Date
- 12/30/81
- Schedule B
- 7318152000
- Name Code
- 01852
- 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
Major End Users Countries and entities
- - Bureau of The Mint
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179662 1/2 / Screw,externally relieved bodyWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). it is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. see also bolt, externally relieved body and bolt, internal wrenching.
