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 |
|---|---|
| 15330 | IMO INDUSTRIES INC DELROYD WORM GEAR |
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 |
| CFFG | WORM HELIX ANGLE | 18 DEG 50 MIN |
| CFGB | UNTHREADED SECTION KEYWAY DEPTH | 0.135 INCHES MINIMUM SECOND END, SEVENTH PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 2.688 INCHES NOMINAL SECOND END, SEVENTH PORTION |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFC | WORM THREAD LEAD | 2.8125 INCHES NOMINAL |
| CFFX | STRAIGHT UNTHREADED LENGTH | 4.422 INCHES NOMINAL SECOND END, FOURTH PORTION |
| AASA | THREAD LENGTH | 1.813 INCHES NOMINAL FIRST END, SECOND PORTION |
| AJYP | SCREW THREAD SERIES DESIGNATOR | 12N OR 12UN FIRST END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.250 INCHES NOMINAL SECOND END, FIFTH PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.160 INCHES MAXIMUM SECOND END, FOURTH PORTION |
| CFFP | WORM BODY LENGTH | 4.750 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.500 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.1652 INCHES MINIMUM SECOND END, SECOND PORTION |
| ABRV | KEYWAY DEPTH | 0.094 INCHES NOMINAL SECOND END, SEVENTH PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 2.375 INCHES NOMINAL FIRST END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 3.750 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.051 INCHES MINIMUM SECOND END, THIRD PORTION |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND FIRST END, SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.500 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFF | WORM PRESSURE ANGLE IN DEG | 27.500 |
| CFFL | WORM PITCH DIAMETER | 2.623 INCHES NOMINAL |
| CFFM | SHAFT HARDNESS RATING | 37.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1240 INCHES MINIMUM SECOND END, SEVENTH PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.1656 INCHES MAXIMUM SECOND END, SECOND PORTION |
| MATL | MATERIAL | STEEL,MIL-S-5000,COND E2 |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1809 INCHES MINIMUM SECOND END, SIXTH PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.063 INCHES MAXIMUM SECOND END, THIRD PORTION |
| CFGB | UNTHREADED SECTION KEYWAY DEPTH | 0.140 INCHES MAXIMUM SECOND END, SEVENTH PORTION |
| CFFB | WORM THREAD QUANTITY | 2 |
| CFFK | WORM OUTSIDE DIAMETER | 3.517 INCHES MINIMUM AND 3.519 INCHES MAXIMUM |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.274 INCHES MINIMUM SECOND END, SECOND PORTION |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.2520 INCHES MAXIMUM SECOND END, SEVENTH PORTION |
| CFFN | WORM THREAD SECTION LENGTH | 4.750 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1245 INCHES MAXIMUM SECOND END, SEVENTH PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 4.063 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.2500 INCHES MINIMUM SECOND END, SEVENTH PORTION |
| ABRR | KEYWAY WIDTH | 0.250 INCHES NOMINAL SECOND END, SEVENTH PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.086 INCHES MINIMUM SECOND END, THIRD PORTION |
| BYFR | TEETH HARDNESS RATING | 37.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1812 INCHES MAXIMUM SECOND END, SIXTH PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.279 INCHES MAXIMUM SECOND END, SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.9683 INCHES MINIMUM FIRST END, SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 2.155 INCHES MINIMUM SECOND END, FOURTH PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.625 INCHES NOMINAL SECOND END, FIFTH PORTION |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND SECOND END, SEVENTH PORTION |
| CFFD | WORM THREAD DIRECTION | RIGHT-HAND |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.9686 INCHES MAXIMUM FIRST END, SECOND PORTION |
| CFQP | THREADED SECTION PIN HOLE DIAMETER | 0.219 INCHES NOMINAL FIRST END, SECOND PORTION |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNS SECOND END, SEVENTH PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 1.125 INCHES NOMINAL SECOND END, SIXTH PORTION |
| ABHP | OVERALL LENGTH | 27.344 INCHES NOMINAL |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.091 INCHES MAXIMUM SECOND END, THIRD PORTION |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |
| AASA | THREAD LENGTH | 0.750 INCHES NOMINAL SECOND END, SEVENTH PORTION |