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 |
|---|---|---|
| ABMZ | DIAMETER | 7.0150 INCHES MINIMUM AND 7.0250 INCHES MAXIMUM |
| ADZG | LUBRICATION MATERIAL | LUBRICATING OIL |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED |
| MATT | MATERIAL | COPPER ALLOY 544 OVERALL |
| AAWY | COUNTERBORE DIAMETER | 7.7810 INCHES MINIMUM AND 7.8120 INCHES MAXIMUM |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| AAWZ | COUNTERBORE DEPTH | 0.0200 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | ROUND W/FLAT |
| ABKV | OUTSIDE DIAMETER | 8.4900 INCHES MINIMUM AND 8.5100 INCHES MAXIMUM |
| 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 |
| CTLM | LUBRICATION FEATURE | GROOVE LARGEST OUTSIDE DIAMETER |
| ABGL | WIDTH | 0.3730 INCHES NOMINAL |