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Datasheet. NAS560HF7-28 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.
0.438in. ⁓29/64"
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.
2.462in. and 2.507in. ⁓2-33/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat countersunk
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.874in. and 0.894in.
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.
0.438in. ⁓29/64"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20
The included angle of the countersink.
99.0 degrees and 101.0 degrees
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the screw material.
ams 5737 assn std 1st material response or ams 5733 assn std 2nd material response
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
The document designator of the specification or standard which established the item of supply.
80205-NAS560HF7-28 professional/industrial association standard
Answers.
Unf
20
Flat countersunk
0.438 inches maximum
Right-hand
3a
FSC 5305 ⁓ Screws
NSN 5305-00-541-0470 SCREW,MACHINE
unf thread series 20 thread quantity per inch flat countersunk head style 0.438" thread length right-hand 3a thread class
- NIIN
- 005410470
- NIIN Date
- 09/28/74
- 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
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Major End Users Countries and entities
- - Germany
- - Republic of Korea
- - Greece
- - Turkey
- - Nato Maintenance And Supply Agency
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NAS560HF7-28 / 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.
