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Datasheet. HFF12 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2b
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 shank.
internally threaded w/bead and wrench flats and inspection hole
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
3.7500in. ⁓3-3/4"
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
0.7495in. and 0.7515in.
1.7500in.
2.8750in.
0.6920in.
0.8700in. and 0.8750in.
2.0000in.
1.1250in.
0.8750in.
The shortest straight line between wrenching flats,perpendicular to the height of the shank.
1.0000in.
The length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.750in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
16
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
60.0 rockwell c inner member and 90.0 rockwell c inner member
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
60.0 rockwell c outer race member and 90.0 rockwell c outer race member
The chemical compound or mechanical mixture properties of which the item is fabricated.
copper alloy race insert
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1018 outer race member
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel inner member
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-B-637 fed spec single material response race insert
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 inner member
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 outer race member
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
shouldered ball type
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
Answers.
Unf
Shouldered ball type
Steel inner member
Steel comp 1018 outer race member
Copper alloy race insert
16
Right-hand
2b
Schedule B number: 8483308055
Transmission shafts: bearing housings, plain shaft bearings with housing, rod end bearings
FSC 3120 ⁓ Bearings, plain, unmounted
Note-bearings in this class are generally one piece that retain and position moving and/or rotating parts. they may have lubrication grooves/fittings/facilities or include pre-lubrication.
Excluding antifriction bearings (fsc 3110); mounted bearings (fsc 3130).
NSN 3120-00-684-2790 BEARING,PLAIN,ROD END
unf thread series shouldered ball type cadmium outer race member surface treated 16 thread quantity per inch 0.7495" bore diameter 3.7500" overall length right-hand 2b thread class
- NIIN
- 006842790
- NIIN Date
- 01/01/63
- Schedule B
- 8483308055
- Name Code
- 13209
- FIIG
- A045A0
- 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
- - Bureau of The Mint
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HFF12 / Bearing,plain,rod endWhat is the formal definition of this item?
A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. it is used to carry a load and to reduce sliding friction. it does not employ rolling elements. the outer member of the assembly is modified to provide a shank. the inner member may be either a plain spherical bearing or a sleeve bearing. excludes bearing, plain, spherical and bearing, plain, self-aligning.
