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 |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
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 |
|---|---|---|
| STYL | STYLE DESIGNATOR | ROUND |
| BZLX | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER |
| BZLX | CORNER SHAPE | CHAMFERED FIRST INSIDE CORNER |
| SFTT | SURFACE TREATMENT | OXIDE SMALLEST OUTSIDE DIAMETER |
| SFTT | SURFACE TREATMENT | OXIDE LARGEST OUTSIDE DIAMETER |
| BZLX | CORNER SHAPE | SQUARE FOURTH OUTSIDE CORNER |
| CSYM | SURFACE FINISH | 20.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| CQFM | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| AAZP | CHAMFER LENGTH (NON-CORE) | ERR-070 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE DIAMETER SURFACE OF BODY |
| SFTT | SURFACE TREATMENT | OXIDE RIGHT SIDE |
| SFTT | SURFACE TREATMENT | OXIDE RIGHT SIDE OF FLANGE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE LARGEST OUTSIDE DIAMETER |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED |
| ABKU | FLANGE THICKNESS | 0.0620 INCHES MINIMUM AND 0.0720 INCHES MAXIMUM |
| AGGZ | SHANK OUTSIDE DIAMETER | 2.5160 INCHES NOMINAL |
| CSYT | CHAMFER ANGLE (NON-CORE) | ERR-070 |
| BZLX | CORNER SHAPE | ROUND THIRD OUTSIDE CORNER |
| MATT | MATERIAL | STEEL COMP E4340 OVERALL |
| ABMZ | DIAMETER | 2.2525 INCHES MINIMUM AND 2.2530 INCHES MAXIMUM |
| ABGG | RADIUS (NON-CORE) | ERR-070 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE RIGHT SIDE |
| ABKV | OUTSIDE DIAMETER | 2.9850 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE RIGHT SIDE OF FLANGE |
| BZLX | CORNER SHAPE | SQUARE SECOND INSIDE CORNER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE SMALLEST OUTSIDE DIAMETER |
| SFTT | SURFACE TREATMENT | OXIDE INSIDE DIAMETER SURFACE OF BODY |
| BZLX | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER |
| ADUM | OVERALL THICKNESS | 0.2680 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM |