3120-00-405-4921 ROLLER,LINEAR-ROTARY MOTION Index 5910-00-405-4923 CAPACITOR,FIXED,PAPER DIELECTRIC

National Stock Number:
3120-00-405-4922

Federal Supply Class:
3120

National Item Identification Number:
004054922

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:
253157410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
253157453711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
BORE INSIDE DIAMETER0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
CASEHARDENING INDICATORNOT CASE-HARDENED
FACE WIDTH0.240 INCHES MINIMUM AND 0.245 INCHES MAXIMUM
OUTSIDE DIAMETER0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
MATERIALSTEEL
METALLIC HARDNESS RATING45.0 MINIMUM ROCKWELL C AND 50.0 MAXIMUM ROCKWELL C
SPECIAL FEATURESMAGNETIC PARTICLE INSPECTION MIL-I-6868
STYLE DESIGNATORPLAIN


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