National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
GEAR , ANTIBACKLASH , SPUR
Definition:
AN ITEM HAVING ONE FIXED GEAR AND ONE FREE GEAR, BOTH HAVING THE SAME COMPLEMENT OF SPUR GEAR TEETH, MOUNTED ON A COMMON HUB. THE FREE GEAR IS ATTACHED TO THE FIXED GEAR BY SPRINGS AND OPERATES AS ONE GEAR. UPON INSTALLATION WITH THE MATING GEAR, THE TEETH OF THE FREE MOVING GEAR ARE PRESET TO MESH WITH TEETH OTHER THAN THOSE OF THE FIXED GEAR. THIS SPRING TENSION BETWEEN THE FIXED GEAR AND THE FREE GEAR ELIMINATES ANY FREE MOTION BETWEEN THE DRIVER AND THE DRIVEN GEAR. THE GEAR IS USED WHERE IDENTICAL AND ACCURATE TRANSMITTED MOTION BETWEEN GEARS IS REQUIRED.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| 9056039 | 18876 | A | 3 | 2 | 1 | AX |
CAGE Information
| Code | Company |
|---|---|
| 18876 | U S ARMY AVIATION AND MISSILE COMMAN |
Federal Supply Class
Title
GEARS, PULLEYS, SPROCKETS, AND T
Inclusions:
INCLUDES POWER TRANSMISSION CHAIN; MATCHED GEAR SETS.
Exclusions:
EXCLUDES REDUCTION GEARS (FSC 3010).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| SFTT | SURFACE TREATMENT | PASSIVATE HUB |
| CWRS | BORE NOMINAL DIAMETER | 0.241 INCHES BOTH ENDS |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR |
| CWRM | FACE NOMINAL WIDTH | 0.125 INCHES |
| MATT | MATERIAL | ALUMINUM SECOND GEAR |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| AGJS | PITCH DIAMETER | 1.9531 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 125 |
| BDZQ | BACKLASH DESIGNATION | GRADE C |
| MATT | MATERIAL | STEEL CORROSION RESISTING HUB |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| FEAT | SPECIAL FEATURES | HUB INCLUDES DRIVE SLOT |
| MATT | MATERIAL | STEEL CORROSION RESISTING SPRING |
| CWCD | NOMINAL OUTSIDE DIAMETER | 1.983 INCHES |
| SFTT | SURFACE TREATMENT | ANODIZE FIRST GEAR |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR |
| MATT | MATERIAL | ALUMINUM FIRST GEAR |
| CWTR | HUB STYLE DESIGNATOR | PINNED FIRST END |
| ANTP | BORE STYLE | PLAIN BOTH ENDS |
| SFTT | SURFACE TREATMENT | ANODIZE SECOND GEAR |
| CWTX | HUB NOMINAL DIAMETER | 0.563 INCHES FIRST END |
| CWWK | PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
| CWNH | TOOTH FORM | STANDARD |