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Datasheet. NAS1351-4-40P 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.
1.000in. ⁓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.
2.500in. ⁓2-1/2"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
spline drive shear head
A measurement from the bottom to the top of the head,in distinction from depth.
0.250in. ⁓1/4"
0.365in. and 0.375in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
hexagon
The national stock number or the identification information of the end equipment for which the item is a part.
RQ-1A predator
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.2500in. ⁓1/4"
The shortest straight line between flats,perpendicular to the height.
0.188in. ⁓13/64"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
screw, cap, socket head
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.
head has a drive hex; surface finish cadmium ii plating type 2, class 2; material alloy steel
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
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.
cadmium
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unrf
Answers.
1EA
Unrf
Steel
28
Spline drive shear head
1.000 inches
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-513-0579 SCREW,CAP,SOCKET HEAD
Used on rq-1a predator. unrf thread series cadmium surface treated head has a drive hex; surface finish cadmium ii plating type 2, class 2; material alloy steel screw, cap, socket head 28 thread quantity per inch spline drive shear head head style 1.000" thread length right-hand 3a thread class
- NIIN
- 015130579
- NIIN Date
- 09/16/03
- Schedule B
- 7318152000
- Name Code
- 16282
- FIIG
- A003B0
- QUP
- 1
- Historical Price
- $21.60 EA
- 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
- - Department of The Air Force
- - Italy
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NAS1351-4-40P / Screw,cap,socket headWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.
