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 |
|---|---|
| 77445 | UNITED TECHNOLOGIES CORPORATION DBA |
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 |
|---|---|---|
| BZLX | CORNER SHAPE | SQUARE THIRD INSIDE CORNER |
| BZLX | CORNER SHAPE | CHAMFERED SECOND OUTSIDE CORNER |
| BZLX | CORNER SHAPE | SQUARE FIRST INSIDE CORNER |
| STYL | STYLE DESIGNATOR | ROUND |
| ADUM | OVERALL THICKNESS | 0.6900 INCHES MINIMUM AND 0.7100 INCHES MAXIMUM |
| BZLX | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER |
| AAWY | COUNTERBORE DIAMETER | 2.6570 INCHES MINIMUM AND 2.6650 INCHES MAXIMUM |
| BZLX | CORNER SHAPE | SQUARE FOURTH INSIDE CORNER |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABKV | OUTSIDE DIAMETER | 2.8830 INCHES MINIMUM AND 2.8840 INCHES MAXIMUM |
| CSYT | CHAMFER ANGLE (NON-CORE) | ERR-070 |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| AAWZ | COUNTERBORE DEPTH | 0.6070 INCHES MINIMUM AND 0.6230 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| BZLX | CORNER SHAPE | SQUARE SECOND INSIDE CORNER |
| MATT | MATERIAL | STEEL COMP E9310 OVERALL |
| AAZP | CHAMFER LENGTH | ERR-070 AND ERR-070 |
| SFCD | SURFACE CONDITION | GROUND |
| ABMZ | DIAMETER | 2.5000 INCHES MINIMUM AND 2.5200 INCHES MAXIMUM |