5340-00-495-2644 SEAT,HELICAL COMPRESSION SPRING Index 4820-00-495-2646 CAM,CONTROL,VALVE

National Stock Number:
3120-00-495-2645

Federal Supply Class:
3120

National Item Identification Number:
004952645

Description:
ROLLER,LINEAR-ROTARY MOTION

Detail:
A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes BEARING, ROLLER, CYLINDRICAL; ROLLER, ELECTRICAL SWITCH; and friction bearings. See also CAM FOLLOWER, NEEDLE BEARING.


Manufacturer Information:
501735-173030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
BORE INSIDE DIAMETER0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM
CASEHARDENING INDICATORNOT CASEHARDENED
CHAMFER/RADIUS OF INSIDE CORNER0.020 IN. CHAMBER OF INSIDE CORNER BY 45 DEG RADIUS
CHAMFER/RADIUS OF OUTSIDE CORNER0.020 IN. CHAMFER OF OUTSIDE CORNERS
FACE WIDTH0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM
OUTSIDE DIAMETER0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 440C FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 440C
METALLIC HARDNESS RATING53.0 MINIMUM ROCKWELL C AND 58.0 MAXIMUM ROCKWELL C
STYLE DESIGNATORPLAIN


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