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Datasheet. C20520-8-8 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 style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flush countersunk
The length of a straight line which passes through the center of the body of the shank and terminates at the circumference.
0.279in. and 0.280in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the shank.
PIN-Rivet, tapered, threaded
0.421in. and 0.426in.
The length of a straight line which passes through the center of a circular tip,and terminates at the circumference.
0.241in. and 0.244in.
A measurement of the longest dimension of the grip,in distinction from width.
0.500in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
50.0 rockwell c and 55.0 rockwell c
A designation that is used for the purpose of general identification of the thread.
0.250in. ⁓1/4"
The included angle of the countersink.
99.0 degrees and 101.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
shear threaded pin
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp H11
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6485 assn std single material response
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 or nickel and 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.
MIL-C-8837, ty ii, cl 2 mil spec 1st treatment response or ams 2416 assn std 2nd 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
Answers.
Unjf
Steel comp h11
28
0.500 inches
Flush countersunk
Right-hand
3a
Schedule B number: 7318230000
Rivets of iron or steel
FSC 5320 ⁓ Rivets
NSN 5320-01-524-9947 PIN-RIVET
unjf thread series cadmium or nickel surface treated shear threaded pin 28 thread quantity per inch 0.500" grip length flush countersunk head style right-hand 3a thread class
- NIIN
- 015249947
- NIIN Date
- 10/25/04
- Schedule B
- 7318230000
- Name Code
- 67165
- FIIG
- A528U0
- 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. | C20520 | Cage 81755 |
| 2. | HL1031-8-8 | Cage 73197 |
| 3. | HL1031-8-8 | Cage 92215 |
| 4. | HL1031-8-8 | Cage L4528 |
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C20520-8-8 / Pin-rivetWhat is the formal definition of this item?
A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. a locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. the shank may include an external wrenching facility which breaks off at a predetermined applied torque.
