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Datasheet. NAS1790V4R14A specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.425in. ⁓7/16"
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.506in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.111in. ⁓1/8"
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.081in. ⁓3/32"
The length of a straight line which passes through the center of the grip,and terminates at the circumference.
0.2490in.
A measurement of the longest dimension of the point,in distinction from width.
0.050in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
flat
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
HIGH-Torque
The national stock number or the identification information of the end equipment for which the item is a part.
airbus A400M atlas 1510-33-209-1552
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 number of holes provided.
1
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.
28
The included angle of the countersink.
100.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
bolt, 100 degree flush head, 160 ksi uts
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.
aluminum
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
28
0.081 inches
0.425 inches
3a
FSC 5305 ⁓ Screws
NSN 5305-01-629-6690 SCREW,CLOSE TOLERANCE
Used on airbus a400m atlas 1510-33-209-1552. unf thread series aluminum surface treated bolt, 100 degree flush head, 160 ksi uts 28 thread quantity per inch 0.081" hole diameter 0.425" thread length 3a thread class
- NIIN
- 016296690
- NIIN Date
- 07/10/14
- Schedule B
- Name Code
- 29294
- FIIG
- A003B0
- DEMIL / ITAR
- Uncontrolled item (Code )
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- --
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Major End Users Countries and entities
- - Spain
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NAS1790V4R14A / Screw,close toleranceWhat is the formal definition of this item?
A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.
