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 |
|---|---|---|
| ABKV | OUTSIDE DIAMETER | 2.1250 INCHES NOMINAL |
| BZLX | CORNER SHAPE | SQUARE FIRST INSIDE CORNER |
| STYL | STYLE DESIGNATOR | ROUND |
| BZLX | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-465,ALLOY 642 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATT | MATERIAL | COPPER ALLOY 642 OVERALL |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | TAPERED HOLE |
| AGHX | SPHERICAL DEPTH | 0.1250 INCHES NOMINAL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ADUM | OVERALL THICKNESS | 0.1820 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM |
| CTLM | LUBRICATION FEATURE | GROOVE EXTERNAL SURFACE MEMBER |
| BZLX | CORNER SHAPE | SQUARE SECOND INSIDE CORNER |
| ABMZ | DIAMETER | 1.6300 INCHES MINIMUM AND 1.6350 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| BZLX | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER |