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Datasheet. NAS1790V4R3 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.
0.425in. ⁓7/16"
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.
0.637in. and 0.667in. ⁓43/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
fillister countersunk
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.464in. and 0.506in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.015in. ⁓1/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
torque set
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.250in. ⁓1/4"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
The included angle of the countersink.
99.0 degrees and 101.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
bolt, 100 deg flush head 160, 000 psi uts
The chemical compound or mechanical mixture properties of which the screw is fabricated.
titanium alloy uns R56400
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the screw material.
ams 4928 assn std single material response or ams 4967 assn std single material response
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.
torque in lbs min 140; grip length 0.1875 in
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
28
Fillister countersunk
0.425 inches
Right-hand
3a
Schedule B number: 8108908000
Other wrought titanium
FSC 5305 ⁓ Screws
NSN 5305-01-591-3731 SCREW,MACHINE
unjf thread series torque in lbs min 140; grip length 0.1875 in bolt, 100 deg flush head 160, 000 psi uts 28 thread quantity per inch fillister countersunk head style 0.425" thread length right-hand 3a thread class
- NIIN
- 015913731
- NIIN Date
- 01/24/11
- Schedule B
- 8108908000
- Name Code
- 06657
- FIIG
- A500D0
- 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
- - Spain
- - United Kingdom
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NAS1790V4R3 / Screw,machineWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
