Part Number
Definition:
A TUBULAR SHAPED ITEM WITH OR WITHOUT FLANGE(S) DESIGNED TO REDUCE FRICTION AND CARRY A KINETIC LOAD ON THE SURFACE(S) PARALLEL TO THE AXIS OF THE BORE. IT MUST HAVE A VISIBLE OR DETECTABLE MEANS OF LUBRICATION OR BE SELF-LUBRICATED. THE OVER ALL LENGTH MUST EXCEED 25 PERCENT OF THE OUTSIDE DIAMETER OR THE SHORTEST DISTANCE BETWEEN PERIPHERAL FLATS OF THE BODY, EXCEPT FOR STRAIGHT TUBULAR (WITHOUT FLANGE OR SHOULDER) ITEMS HAVING A BEARING SURFACE(S) PARALLEL TO THE AXIS OF THE BORE ONLY. INCLUDES ITEMS WHICH ARE DIVIDED INTO TWO OR MORE SEGMENTS WHICH INCLUDE 180 DEGREES (3.141 RADIANS) OR LESS OF THE BEARING PERIPHERY. SEE ALSO BUSHING, SLEEVE; SPACER, SLEEVE; AND WASHER (AS MODIFIED). EXCLUDES PIN, HOLLOW.
CAGE Information
| Code | Company |
|---|---|
| 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
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 |
|---|---|---|
| ADAR | BODY OUTSIDE DIAMETER | 1.3424 INCHES MINIMUM AND 1.3427 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 1.1260 INCHES MINIMUM AND 1.1265 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 630 OUTER LAYER |
| ABHP | OVERALL LENGTH | 1.0000 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM |
| MATT | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER AND PLASTIC POLYAMIDE INNER LAYER AND PLASTIC PHENOLIC INNER LAYER |
| STYL | STYLE DESIGNATOR | SOLID |
| BZLX | CORNER SHAPE | SQUARE ALL CORNERS |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER LAYER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-81820 MIL SPEC SINGLE MATERIAL RESPONSE INNER LAYER |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |