Part Number
Part Number:
NSN:
NIIN:
Item Name:
WORM SHAFT
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 70255 | EMERSON ELECTRIC CO ALCO CONTROLS DI |
Federal Supply Class
Title
MISCELLANEOUS POWER TRANSMISSION
Inclusions:
INCLUDES SHAFTS AND SHAFTING; COLLARS; GEARSHAFTS; BALL JOINTS; ACTUATING CYLINDERS.
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1770 INCHES MAXIMUM SECOND END, FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.196 INCHES NOMINAL FIRST END, FIRST PORTION |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFW | SHAFT LOCATION | ONE END OF WORM |
| CFFL | WORM PITCH DIAMETER | 0.322 INCHES MINIMUM AND 0.325 INCHES MAXIMUM |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1770 INCHES MAXIMUM SECOND END, SECOND PORTION |
| CFFF | WORM PRESSURE ANGLE IN DEG | 20.000 |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.197 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFM | SHAFT HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.197 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFK | WORM OUTSIDE DIAMETER | 0.375 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.197 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.237 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFGC | UNTHREADED SECTION PIN HOLE DIAMETER | 0.1470 INCHES MINIMUM SECOND END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.200 INCHES NOMINAL SECOND END, SECOND PORTION |
| ABHP | OVERALL LENGTH | 1.959 INCHES NOMINAL |
| CFFN | WORM THREAD SECTION LENGTH | 0.750 INCHES NOMINAL |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1720 INCHES MINIMUM FIRST END, FIRST PORTION |
| CFGC | UNTHREADED SECTION PIN HOLE DIAMETER | 0.1500 INCHES MAXIMUM SECOND END, SECOND PORTION |
| CFFB | WORM THREAD QUANTITY | 4 |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1720 INCHES MINIMUM SECOND END, FIRST PORTION |
| MATL | MATERIAL | STEEL SAE 4140 |
| CFFP | WORM BODY LENGTH | 1.326 INCHES NOMINAL |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1720 INCHES MINIMUM SECOND END, SECOND PORTION |
| CFFD | WORM THREAD DIRECTION | RIGHT-HAND |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1770 INCHES MAXIMUM FIRST END, FIRST PORTION |
| CFGC | UNTHREADED SECTION PIN HOLE DIAMETER | 0.0930 INCHES NOMINAL FIRST END, FIRST PORTION |