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Datasheet. NAS568-53 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.
1.596in. and 1.626in. ⁓1-41/64"
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.
1.640in. and 1.687in. ⁓1-11/16"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.375in. ⁓3/8"
0.740in. and 0.752in.
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.070in. and 0.080in. ⁓3/32"
The length of a straight line which passes through the center of the grip,and terminates at the circumference.
0.464in. and 0.500in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.500in. ⁓1/2"
A measurement of the longest dimension of the grip,in distinction from width.
0.030in. and 0.060in.
The number of holes provided.
3
Indicates the type of hole(s) provided in the item.
drilled
Those features,not otherwise specified,which may be required for proper functioning of the item.
finished head
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
25500 pounds per square inch
The style designation that most nearly corresponds to the appearance of the hole configuration.
hexagon corners
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
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
QQ-P-416, type ii, class 2 fed spec single treatment 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.
unjf
The document designator of the specification or standard which established the item of supply.
80205-NAS568 professional/industrial association standard
Answers.
Unjf
Steel
20
0.030 inches minimum and 0.060 inches maximum
0.070 inches minimum and 0.080 inches maximum
Hexagon
1.596 inches minimum and 1.626 inches maximum
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
NSN 5306-01-486-4694 BOLT,MACHINE
unjf thread series cadmium surface treated 20 thread quantity per inch 0.030" grip length 0.070" hole diameter hexagon head style 1.596" thread length right-hand 3a thread class
- NIIN
- 014864694
- NIIN Date
- 06/29/01
- Schedule B
- 7318152000
- Name Code
- 01847
- FIIG
- A003B0
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- 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. | 3311997 ITEM 41 | Cage 59364 |
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NAS568-53 / Bolt,machineWhat is the formal definition of this item?
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. see also screw, cap, hexagon head and screw, machine.
