National Stock Number (NSN) Output Data
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.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| 4B21S3-100 | 43999 | A | 5 | 2 | X | XX | ||
| LD137-0017-8032 | 43999 | A | 3 | 2 | 5 | ZZ |
CAGE Information
| Code | Company |
|---|---|
| 43999 | BOEING COMPANY THE DBA BOEING DIV DE |
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 |
|---|---|---|
| CSYM | SURFACE FINISH | 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| CSYM | SURFACE FINISH | 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| ABHP | OVERALL LENGTH | 0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL OVERALL |
| ADAS | BODY INSIDE DIAMETER | 0.1895 INCHES MINIMUM AND 0.1905 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CHROMIUM OVERALL |
| STYL | STYLE DESIGNATOR | SPLIT |
| BZLX | CORNER SHAPE | SQUARE ALL CORNERS |
| CSYM | SURFACE FINISH | 250.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| CSYM | SURFACE FINISH | 125.0 MICROINCHES RIGHT END SURFACE OF BODY |
| CSYM | SURFACE FINISH | 125.0 MICROINCHES LEFT END SURFACE OF BODY |
| ADAR | BODY OUTSIDE DIAMETER | 0.3105 INCHES MINIMUM AND 0.3110 INCHES MAXIMUM |