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 |
|---|---|
| 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL D |
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 |
|---|---|---|
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.281 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.281 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFQ | WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFF | WORM PRESSURE ANGLE IN DEG | 14.500 |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.750 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.219 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.531 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFFK | WORM OUTSIDE DIAMETER | 1.448 INCHES MINIMUM AND 1.450 INCHES MAXIMUM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.843 INCHES NOMINAL SECOND END, FIRST PORTION |
| MATL | MATERIAL | STEEL,QQ-S-624,FS4140 |
| ABHP | OVERALL LENGTH | 4.281 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.669 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFG | WORM HELIX ANGLE | 4 DEG 34 MIN 26 SEC |
| CFFL | WORM PITCH DIAMETER | 1.250 INCHES NOMINAL |
| BYFR | TEETH HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL B MAXIMUM |
| CFFB | WORM THREAD QUANTITY | 1 |
| CFGJ | INVOLUTE SPLINE QUANTITY | 14 SECOND END, THIRD PORTION |
| CFGM | INVOLUTE SPLINE LENGTH | 0.906 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFFD | WORM THREAD DIRECTION | LEFT-HAND |
| CFFC | WORM THREAD LEAD | 0.314 INCHES NOMINAL |
| CFGL | INVOLUTE SPLINE PITCH DIAMETER | 0.5833 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.469 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.591 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFGK | INVOLUTE SPLINE PRESSURE ANGLE IN DEG | 30.0 SECOND END, THIRD PORTION |
| CFFN | WORM THREAD SECTION LENGTH | 1.563 INCHES NOMINAL |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |