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Datasheet. NAS517-4-39 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
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.
2.478in. ⁓2-31/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
cross recess type ii
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.
100.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
close tolerance flat head
The metallic,nonmetallic,and/or chemical properties with which the screw is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
cadmium
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.
160000 to 180000psi uts heat treatment
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
Cadmium
28
Right-hand
3a
FSC 5305 ⁓ Screws
NSN 5305-01-510-7949 SCREW,MACHINE
unjf thread series 160000 to 180000psi uts heat treatment cadmium screw surface treated close tolerance flat head 28 thread quantity per inch right-hand 3a thread class
- NIIN
- 015107949
- NIIN Date
- 07/25/03
- Schedule B
- 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | NAS517 | Cage 80205 |
| 2. | NAS517 | Cage 80205 |
| 3. | NAS517 | Cage 80205 |
Major End Users Countries and entities
- - Spain
- - Australia
- - Belgium
- - Germany
- - Republic of Korea
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NAS517-4-39 / 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.
