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 |
|---|---|
| 30003 | NAVAL AIR SYSTEMS COMMAND |
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 |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFC | WORM THREAD LEAD | 0.7666 INCHES NOMINAL |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.2500 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.2500 INCHES NOMINAL SECOND END, THIRD PORTION |
| MATL | MATERIAL | STEEL |
| CFFF | WORM PRESSURE ANGLE IN DEG | 22.500 |
| BYFR | TEETH HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.2500 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.9540 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFFG | WORM HELIX ANGLE | 22DEG 59 MIN |
| CFFK | WORM OUTSIDE DIAMETER | 3.4040 INCHES NOMINAL |
| CFFX | STRAIGHT UNTHREADED LENGTH | 2.2500 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.9380 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFGD | TAPER LARGEST DIAMETER | 4.6250 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFL | WORM PITCH DIAMETER | 2.918 INCHES NOMINAL |
| CFFB | WORM THREAD QUANTITY | 1 |
| CFFM | SHAFT HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM |
| CFGD | TAPER LARGEST DIAMETER | 3.5000 INCHES NOMINAL FIRST END, FIRST PORTION |
| ABHP | OVERALL LENGTH | 18.3120 INCHES NOMINAL |
| CFGB | UNTHREADED SECTION KEYWAY DEPTH | 0.1450 INCHES NOMINAL SECOND END, THIRD PORTION |
| ABND | TAPER LENGTH | 2.8750 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 3.3480 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFD | WORM THREAD DIRECTION | RIGHT-HAND |
| ABND | TAPER LENGTH | 3.2500 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |