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 |
|---|---|
| 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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 |
| SFTT | SURFACE TREATMENT | PASSIVATE HUB |
| SFTT | SURFACE TREATMENT | ANODIZE BODY |
| CTQY | MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWCD | NOMINAL OUTSIDE DIAMETER | 1.780 INCHES |
| CWRM | FACE NOMINAL WIDTH | 0.104 INCHES |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 BODY |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB |
| CWTX | HUB NOMINAL DIAMETER | 0.310 INCHES FIRST END |
| CWTR | HUB STYLE DESIGNATOR | PINNED FIRST END |
| ANTP | BORE STYLE | PLAIN BOTH ENDS |
| CWRS | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS |
| MATT | MATERIAL | STEEL COMP 303 HUB |
| AJLA | TEETH QUANTITY | 112 |
| CWNH | TOOTH FORM | STANDARD |
| AGJS | PITCH DIAMETER | 1.7493 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM |