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 |
| AGJR | MINOR DIAMETER | 2.5930 INCHES MINIMUM AND 2.5980 INCHES MAXIMUM |
| CSYM | SURFACE FINISH | 35.0 MICROINCHES LEFT SIDE |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| ABKV | OUTSIDE DIAMETER | 3.5650 INCHES MINIMUM AND 3.5850 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | TIN OVERALL |
| CSYM | SURFACE FINISH | 35.0 MICROINCHES RIGHT SIDE |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND W/ROUND KEYWAYS |
| AGKA | CENTER HOLE KEYWAY QUANTITY | 4 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4520 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| BZLX | CORNER SHAPE | SQUARE ALL CORNERS |
| ADUM | OVERALL THICKNESS | 0.1020 INCHES MINIMUM AND 0.1040 INCHES MAXIMUM |
| AGJY | CENTER HOLE KEYWAY RADIUS | 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM |
| CTLM | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 6435-20233-101,78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| FEAT | SPECIAL FEATURES | 8 OIL GROOVES 4 ON EA SIDE EQUALLY SPACED DIAMETRICALLY OPPOSED |
| AAZR | MAJOR DIAMETER | 2.7070 INCHES MINIMUM AND 2.7320 INCHES MAXIMUM |