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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

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