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 |
|---|---|
| 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 |
|---|---|---|
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.219 INCHES FIRST END |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL |
| CWRS | BORE NOMINAL DIAMETER | 0.563 INCHES FIRST END |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CWFR | NOMINAL OVERALL LENGTH | 0.406 INCHES |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| CWRM | FACE NOMINAL WIDTH | 0.187 INCHES |
| CWTR | HUB STYLE DESIGNATOR | PLAIN FIRST END |
| AGJS | PITCH DIAMETER | 1.8750 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | COUNTERBORE SECOND END,0.703 IN. DIA; 0.188 IN. DEEP |
| BDZQ | BACKLASH DESIGNATION | GRADE C |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| CWTX | HUB NOMINAL DIAMETER | 0.933 INCHES FIRST END |
| CWPP | PRESSURE ANGLE | 14.5000 DEGREES |
| CWWK | PRECISION CLASSIFICATION | QUALITY NUMBER 8 OR QUALITY NUMBER 12 |
| AJLA | TEETH QUANTITY | 90 |
| CWCD | NOMINAL OUTSIDE DIAMETER | 1.914 INCHES |
| ANTP | BORE STYLE | PLAIN FIRST END |
| CWNH | TOOTH FORM | STANDARD |