Part Number
Definition:
AN ITEM OF ANY PERIPHERAL SHAPE USUALLY HAVING ONE FLAT OR SPHERICAL SURFACE AND A CENTRALLY LOCATED HOLE. IT IS DESIGNED FOR APPLICATIONS INVOLVING MOVING (KINETIC) LOADS. EXCEPT FOR ITEMS FABRICATED FROM BEARING QUALITY SYNTHETIC (PLASTIC) OR COMPOSED OF MULTILAYER MATERIAL, ONE BEARING SURFACE MUST EITHER HAVE A SPECIFIC SURFACE FINISH DESIGNATION OF 32 MICROINCH (0.8 MICROMETRE) OR LESS, ARITHMETICAL AVERAGE (AA) (ARITHMETIC MEAN DEVIATION) OR ONE OF THE FOLLOWING CONDITIONS: BE LAPPED OR GROUND; HAVE VISIBLE OR DETECTABLE MEANS OF LUBRICATION; GROOVES, INDENTATIONS; OR SELF-LUBRICATION. THE THICKNESS MUST NOT EXCEED 25 PERCENT OF THE OUTSIDE DIAMETER OF THE SHORTEST DISTANCE BETWEEN PERIPHERAL FLATS (WHEN THICKNESS AND/OR OUTSIDE DIAMETER IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE). EXCLUDES STRAIGHT, TUBULAR (WITHOUT FLANGE) ITEMS HAVING A BEARING SURFACE(S) PARALLEL TO THE AXIS OF THE BORE ONLY. SEE ALSO WASHER, FLAT AND SPACER, SLEEVE.
CAGE Information
| Code | Company |
|---|---|
| 84955 | KAMAN AEROSPACE CORPORATION DBA HELI |
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 |
|---|---|---|
| CSYM | SURFACE FINISH | 20.0 MICROINCHES LEFT SIDE |
| CSYM | SURFACE FINISH | 20.0 MICROINCHES LEFT SIDE |
| MATT | MATERIAL | STEEL COMP 1075 OVERALL |
| STYL | STYLE DESIGNATOR | ROUND |
| ADUM | OVERALL THICKNESS | 0.0720 INCHES MINIMUM AND 0.0730 INCHES MAXIMUM |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| ABKV | OUTSIDE DIAMETER | 3.2900 INCHES NOMINAL |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| FEAT | SPECIAL FEATURES | GROOVE ON BOTH BEARING SURFACES |
| ABMZ | DIAMETER | 1.9979 INCHES MINIMUM AND 1.9984 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM OVERALL AND 63.0 ROCKWELL C MAXIMUM OVERALL |
| CSYM | SURFACE FINISH | 20.0 MICROINCHES RIGHT SIDE |
| BZLX | CORNER SHAPE | SQUARE ALL CORNERS |
| CTLM | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE AND GROOVE FLAT BEARING SURFACE |