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Datasheet. 3M1255E4L12 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.
1.135in. ⁓1-9/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flush countersunk
0.0947in. and 0.0967in.
The length of a straight line which passes through the center of the body of the shank and terminates at the circumference.
0.2802in. and 0.2807in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the shank.
0.390in. and 0.397in.
A substance designed to provide a reduction of friction between the two surfaces in contact.
cetyl alcohol and dry film
The national stock number or the identification information of the end equipment for which the item is a part.
CF-18 hornet aircraft
A measurement of the longest dimension of the grip,in distinction from width.
0.750in.
A designation that is used for the purpose of general identification of the thread.
0.250in. ⁓1/4"
The included angle of the countersink.
100.0 degrees
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.
material cres (inconel 718)
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting
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.
passivate
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 corrosion resisting
0.750 inches maximum
Flush countersunk
Right-hand
3a
Schedule B number: 7318230000
Rivets of iron or steel
FSC 5320 ⁓ Rivets
NSN 5320-01-491-4476 PIN-RIVET
Used on cf-18 hornet aircraft. unjf thread series passivate surface treated material cres (inconel 718) 0.750" grip length flush countersunk head style right-hand 3a thread class
- NIIN
- 014914476
- NIIN Date
- 10/22/01
- 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
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Major End Users Countries and entities
- - Canada
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3M1255E4L12 / 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.
