National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
BEARING , BALL , AIRFRAME
Definition:
A CYLINDRICAL ITEM IN WHICH THE INNER OR OUTER RING TURNS UPON ROW(S) OF HARDENED BALL, BEARING WHICH ROLL ON A RACEWAY, THUS MINIMIZING FRICTION. THESE ITEMS ARE CHARACTERIZED BY THEIR NONCORROSIVE QUALITIES, LIGHTNESS OF WEIGHT, INCH DIMENSIONS RATHER THAN METRIC, INNER RINGS GENERALLY PROJECTING BEYOND THE FACES OF THE OUTER RING, OR A VERY NARROW WIDTH INNER RING HAVING AN OUTSIDE DIAMETER SLIGHTLY LARGER THAN THE BORE DIAMETER. DESIGNED PRIMARILY FOR USE IN AIRCRAFT ASSEMBLIES, SUCH AS CONTROL SYSTEMS AND SURFACES OF AIRCRAFT. EXCLUDES BEARING, BALL, ANNULAR.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| MDW4K-003M | 40920 | A | 5 | 1 | 5 | ZZ | ||
| 38950-00902-105 | 78286 | A | 7 | 2 | 5 | ZZ | ||
| MDW4KA1173 | 21335 | A | 5 | 9 | 1 | CT | ||
| 38950-00902-105 | 40920 | A | 3 | 2 | 5 | ZZ |
CAGE Information
| Code | Company |
|---|---|
| 21335 | TIMKEN AEROSPACE, INC TIMKEN AEROSPA |
| 40920 | TIMKEN AEROSPACE & SUPER PRECISION H |
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
Federal Supply Class
Title
BEARINGS, ANTIFRICTION, UNMOUNTE
Inclusions:
INCLUDES BALL BEARINGS; ROLLER BEARINGS; BALLS; RACES.
Exclusions:
EXCLUDES PLAIN BEARINGS (FSC 3120); JEWEL BEARINGS (FSC 3120)
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AGYW | BEARING SEAL TYPE | CONTACT |
| AGYW | BEARING SEAL TYPE | CONTACT |
| MATT | MATERIAL | RUBBER SYNTHETIC SEAL |
| MATT | MATERIAL | STEEL RETAINER |
| MATT | MATERIAL | STEEL OUTER RING |
| ABXV | BORE DIAMETER | 0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| AGZC | LOAD DIRECTION | RADIAL |
| ADZG | LUBRICATION MATERIAL | GREASE |
| AGVT | AND | |
| AGVU | AND | |
| AGYJ | SEAL QUANTITY | 2 |
| MATT | MATERIAL | STEEL INNER RING |
| FEAT | SPECIAL FEATURES | 40 TO 50 PCT FULL OF SPECIFIED LUBRICANT,0.440 IN. OZ MAX STARTING TORQUE |
| ADGA | OVERALL OUTSIDE DIAMETER | 0.7496 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM |
| LMDC | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| STYL | STYLE DESIGNATOR | DOUBLE ROW |
| MATT | MATERIAL | STEEL BALL |