Part Number
Part Number:
NSN:
NIIN:
Item Name:
ROLLER , LINEAR-ROTARY MOTION
Definition:
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.
CAGE Information
Code | Company |
---|---|
77272 | THE BOEING COMPANY DBA BOEING |
Federal Supply Class
Title
BEARINGS, PLAIN, UNMOUNTED
Inclusions:
INCLUDES SLEEVE BEARINGS; SPLIT BEARINGS; WASHER TYPE BEARINGS; JEWEL BEARINGS.
Exclusions:
EXCLUDES ANTIFRICTION BEARINGS (FSC 3110); MOUNTED BEARINGS (FSC 3130).
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
ZZZV | FSC APPLICATION DATA | VALVE,HYDRAULIC,AIRCRAFT |
ZZZV | FSC APPLICATION DATA | VALVE,HYDRAULIC,AIRCRAFT |
BCXD | BORE INSIDE DIAMETER | 0.2505 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM |
MATL | MATERIAL | STEEL |
STYL | STYLE DESIGNATOR | PLAIN |
SURF | SURFACE TREATMENT | PASSIVATED |
ABKV | OUTSIDE DIAMETER | 0.749 INCHES MINIMUM AND 0.751 INCHES MAXIMUM |
AQPL | FACE WIDTH | 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
AETC | METALLIC HARDNESS RATING | 59.0 MINIMUM ROCKWELL C AND 60.0 MAXIMUM ROCKWELL C |
AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |