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Datasheet. NAS720-8-6 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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.
0.266in. ⁓17/64"
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.
0.343in. and 0.375in. ⁓3/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
pan no. 2
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.306in. and 0.322in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.085in. and 0.096in. ⁓7/64"
The number of washers included on the item.
2
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
cross recess type iii
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.164in. (UTS #8)
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
32
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
55000 pounds per square inch
An indication of whether or not the secondary is identical to the primary washer.
not identical
The style designation indicating the configuration that most nearly corresponds to the appearance of the secondary washer.
flat
0.296in.
0.307in. and 0.317in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the primary washer.
split helical ring
0.040in.
0.013in. and 0.019in.
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1010 fastener
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1017 secondary washer or steel comp 1020 secondary washer or steel comp 1025 secondary washer
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1060 primary washer or steel comp 1561 primary washer or steel comp 1566 primary washer or steel comp 1069 primary washer or steel comp 1070 primary washer or steel comp 1071 primary washer or steel comp 1572 primary washer or steel comp 1074 primary washer or steel comp 1075 primary washer or steel comp 1078 primary washer or steel comp 1080 primary washer
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
astm a 29 assn std all material responses primary washer
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-S-634 fed spec single material response fastener or QQ-S-737 fed spec single material response fastener
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 and chromate
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 2, class 2 fed spec all treatment responses
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
The document designator of the specification or standard which established the item of supply.
80205-NAS720 professional/industrial association standard
Answers.
Unc
Steel comp 1060 primary washer or steel comp 1561 primary washer or steel comp 1566 primary washer or steel comp 1069 primary washer or steel comp 1070 primary washer or steel comp 1071 primary washer or steel comp 1572 primary washer or steel comp 1074 primary washer or steel comp 1075 primary washer or steel comp 1078 primary washer or steel comp 1080 primary washer
Steel comp 1017 secondary washer or steel comp 1020 secondary washer or steel comp 1025 secondary washer
Steel comp 1010 fastener
32
Pan no. 2
0.266 inches maximum
Right-hand
2a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-420-1784 SCREW,ASSEMBLED WASHER
unc thread series cadmium surface treated 32 thread quantity per inch pan no. 2 head style 0.266" thread length right-hand 2a thread class
- NIIN
- 014201784
- NIIN Date
- 10/11/95
- Schedule B
- 7318152000
- Name Code
- 06660
- FIIG
- A003B0
- QUP
- Historical Price
- $0.15 EA
- 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
- - Department of The Air Force
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NAS720-8-6 / Screw,assembled washerWhat is the formal definition of this item?
A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
