NSN 3040-00-991-6741
Part Details | WORM SHAFT
3040-00-991-6741 A drive shaft having helical thread(s) on a portion of its outer surface, machined bearing surface(s) and facilities for driving (other than a hub) on one or both ends of shaft. Designed to mate with a cam, gear sector, worm wheel, etc. Includes items with bearings. Excludes items having more than one worm complement of helical threads, items with a separate complement of gear teeth, and GEAR, WORM.
Alternate Parts: 10930650, 3040-00-991-6741, 00-991-6741, 3040009916741, 009916741
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | JAN 01, 1962 | 00-991-6741 | 18249 ( WORM SHAFT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 3040-00-991-6741
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10930650 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
Technical Data | NSN 3040-00-991-6741
| Characteristic | Specifications |
|---|---|
| TEETH HARDNESS RATING | RCB55.0 ROCKWELL C MAXIMUM AND 62.0 ROCKWELL C MAXIMUM |
| SURFACE TREATMENT | OIL |
| WORM THREAD QUANTITY | 1 |
| WORM PRESSURE ANGLE IN DEG | 14.500 |
| WORM THREAD LEAD | 0.3938 INCHES NOMINAL |
| WORM THREAD DIRECTION | LEFT-HAND |
| WORM HELIX ANGLE | 85 DEG 45 MIN |
| WORM OUTSIDE DIAMETER | 1.932 INCHES MINIMUM AND 1.936 INCHES MAXIMUM |
| WORM PITCH DIAMETER | 1.687 INCHES NOMINAL |
| WORM THREAD SECTION LENGTH | 2.000 INCHES NOMINAL |
| WORM BODY LENGTH | 2.000 INCHES NOMINAL |
| WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| SHAFT LOCATION | BOTH ENDS OF WORM |
| END SIMILARITY | NOT IDENTICAL |
| OVERALL LENGTH | 7.188 INCHES NOMINAL |
| SPECIAL FEATURES | FOURTH PORTION,FIRST END,CHAMFERED TO 0.062 BY 45 DEG |
| FSC APPLICATION DATA | TRAVERSING MECHANISM,MACHINE GUN |