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 |
|---|---|
| 80064 | NAVAL SHIP 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 |
| CFFQ | WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.9690 INCHES MAXIMUM SECOND END, FIRST PORTION |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1250 INCHES MINIMUM FIRST END, FIRST PORTION |
| ABRV | KEYWAY DEPTH | 0.156 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.750 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.875 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.4940 INCHES MINIMUM SECOND END, SECOND PORTION |
| CFFP | WORM BODY LENGTH | 10.000 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1255 INCHES MAXIMUM FIRST END, FIRST PORTION |
| CFGB | UNTHREADED SECTION KEYWAY DEPTH | 0.250 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFF | WORM PRESSURE ANGLE IN DEG | 25.000 |
| BYFR | TEETH HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| CFFX | STRAIGHT UNTHREADED LENGTH | 2.813 INCHES NOMINAL SECOND END, SECOND PORTION |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND FIRST END, THIRD PORTION |
| AASA | THREAD LENGTH | 1.375 INCHES NOMINAL FIRST END, THIRD PORTION |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.4960 INCHES MAXIMUM SECOND END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.688 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFG | WORM HELIX ANGLE | 11 DEG,41 MIN,56.24 SEC |
| CFFK | WORM OUTSIDE DIAMETER | 3.494 INCHES MINIMUM AND 3.496 INCHES MAXIMUM |
| CFFL | WORM PITCH DIAMETER | 3.000 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.875 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.9670 INCHES MINIMUM SECOND END, SECOND PORTION |
| CFFB | WORM THREAD QUANTITY | 2 |
| AJYP | SCREW THREAD SERIES DESIGNATOR | SPECIAL /1.926 TO 1.931 IN. PITCH DIA/ SECOND END, THIRD PORTION |
| AJYP | SCREW THREAD SERIES DESIGNATOR | NC OR UNC /CLASS 3 FIT OR 3A THD/ FIRST END, THIRD PORTION |
| MATL | MATERIAL | STEEL,B50R214,CLASS A,GENERAL ELECTRIC CO |
| ABHP | OVERALL LENGTH | 19.125 INCHES NOMINAL |
| ABRR | KEYWAY WIDTH | 0.313 INCHES NOMINAL SECOND END, THIRD PORTION |
| CFFC | WORM THREAD LEAD | 1.9516 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.9675 INCHES MAXIMUM SECOND END, SECOND PORTION |
| CFFN | WORM THREAD SECTION LENGTH | 6.000 INCHES NOMINAL |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.500 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFD | WORM THREAD DIRECTION | RIGHT-HAND |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.9686 INCHES MINIMUM SECOND END, FIRST PORTION |
| CFFM | SHAFT HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND SECOND END, THIRD PORTION |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |