Part Number
Part Number:
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.
CAGE Information
| Code | Company |
|---|---|
| 04939 | LOCKHEED MARTIN CORPORATION DBA LOCK |
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 |
|---|---|---|
| CWTX | HUB NOMINAL DIAMETER | 0.370 INCHES FIRST END |
| CWRM | FACE NOMINAL WIDTH | 0.125 INCHES |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| AGJS | PITCH DIAMETER | 0.6250 INCHES NOMINAL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| CWTR | HUB STYLE DESIGNATOR | PINNED FIRST END |
| ANTP | BORE STYLE | PLAIN BOTH ENDS |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.375 INCHES FIRST END |
| CWRS | BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS |
| CWCD | NOMINAL OUTSIDE DIAMETER | 0.667 INCHES |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| AJLA | TEETH QUANTITY | 30 |
| CWNH | TOOTH FORM | STANDARD |