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 |
|---|---|
| 56232 | LOCKHEED MARTIN CORPORATION DBA LOCK |
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 | 0.097 INCHES NOMINAL FIRST END, THIRD PORTION |
| CFFQ | WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| AASA | THREAD LENGTH | 0.188 INCHES NOMINAL SECOND END, THIRD PORTION |
| ABHP | OVERALL LENGTH | 2.703 INCHES NOMINAL |
| AAHN | END SIMILARITY | NOT IDENTICAL |
| CFFF | WORM PRESSURE ANGLE IN DEG | 14.500 |
| CFQR | CIRCULAR PORTION RADIUS | 0.1249 INCHES NOMINAL FIRST END, FOURTH PORTION |
| CCKD | SECTION SHAPE | D-SHAPE FIRST END, FOURTH PORTION |
| CFFM | SHAFT HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| MATL | MATERIAL | STEEL, CORROSION RESISTING |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.208 INCHES NOMINAL FIRST END, SECOND PORTION |
| BYFR | TEETH HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.2398 INCHES NOMINAL FIRST END, SECOND PORTION |
| BDGL | DISTANCE FROM RADIAL CENTER TO FLAT SURFACE | 0.0937 INCHES NOMINAL FIRST END, FOURTH PORTION |
| CFFC | WORM THREAD LEAD | 0.2618 INCHES NOMINAL |
| CFFG | WORM HELIX ANGLE | 9 DEG 28 MIN |
| CFFK | WORM OUTSIDE DIAMETER | 0.562 INCHES NOMINAL |
| SURF | SURFACE TREATMENT | PASSIVATED |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.2948 INCHES NOMINAL FIRST END, FIRST PORTION |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNF SECOND END, THIRD PORTION |
| CFFB | WORM THREAD QUANTITY | 2 |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.2948 INCHES NOMINAL FIRST END, THIRD PORTION |
| CFFP | WORM BODY LENGTH | 1.2343 INCHES NOMINAL |
| CFFL | WORM PITCH DIAMETER | 0.500 INCHES NOMINAL |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.2498 INCHES NOMINAL SECOND END, FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.062 INCHES NOMINAL SECOND END, SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.542 INCHES NOMINAL SECOND END, FIRST PORTION |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | W/CENTER DRILLED HOLE IN END OF SHORTEST SHAFT LG |
| CFFN | WORM THREAD SECTION LENGTH | 0.812 INCHES NOMINAL |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.203 INCHES NOMINAL FIRST END, FIRST PORTION |
| CFFD | WORM THREAD DIRECTION | RIGHT-HAND |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND SECOND END, THIRD PORTION |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 0.190 INCHES NOMINAL SECOND END, SECOND PORTION |