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 |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
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 |
|---|---|---|
| CFFQ | WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| CFFQ | WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFF | WORM PRESSURE ANGLE IN DEG | 14.500 |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.635 INCHES NOMINAL FIRST END, FIRST PORTION |
| MATL | MATERIAL | STEEL,MIL-S-6758 |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.380 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFB | WORM THREAD QUANTITY | 1 |
| CFFL | WORM PITCH DIAMETER | 0.333 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 3.230 INCHES NOMINAL |
| CFFN | WORM THREAD SECTION LENGTH | 0.560 INCHES NOMINAL |
| CFFG | WORM HELIX ANGLE | 3 DEG 35 MIN |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.190 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFK | WORM OUTSIDE DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.125 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.810 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFD | WORM THREAD DIRECTION | RIGHT-HAND |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.190 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |