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 |
|---|---|
| 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMS |
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 |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| AGKQ | BEARING SURFACE HOLE QUANTITY | 4 FIRST |
| CQFM | HARDNESS RATING | 82.0 ROCKWELL B MINIMUM OVERALL AND 89.0 ROCKWELL B MAXIMUM OVERALL |
| BZLX | CORNER SHAPE | SQUARE ALL CORNERS |
| ABMZ | DIAMETER | 2.3800 INCHES MINIMUM AND 2.3850 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CTLM | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE |
| MATT | MATERIAL | STEEL COMP 1009 OVERALL OR STEEL COMP 1015 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1022 OVERALL |
| ADUM | OVERALL THICKNESS | 0.0580 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 4.0312 INCHES NOMINAL |
| AGKR | BEARING SURFACE HOLE DIAMETER | 0.2500 INCHES NOMINAL FIRST |