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 |
|---|---|
| 80318 | BTR VALVE SEALANTS INC |
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 |
|---|---|---|
| ADUM | OVERALL THICKNESS | 0.4375 INCHES NOMINAL |
| STYL | STYLE DESIGNATOR | ROUND |
| BZLX | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER |
| BZLX | CORNER SHAPE | CHAMFERED FIRST INSIDE CORNER |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| AAZP | CHAMFER LENGTH (NON-CORE) | ERR-070 |
| CSYT | CHAMFER ANGLE (NON-CORE) | ERR-070 |
| ABMZ | DIAMETER | 3.1505 INCHES MINIMUM AND 3.1535 INCHES MAXIMUM |
| CTLM | LUBRICATION FEATURE | GROOVE EXTERNAL SURFACE MEMBER |
| SFCD | SURFACE CONDITION | GROUND |
| BZLX | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER |
| BZLX | CORNER SHAPE | CHAMFERED SECOND INSIDE CORNER |
| ABKV | OUTSIDE DIAMETER | 5.9815 INCHES MINIMUM AND 5.9915 INCHES MAXIMUM |