NSN 3020-00-204-9504

Part Details | SPUR ANTIBACKLASH GEAR

3020-00-204-9504 An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

Alternate Parts: 633511, 63351-1, 63351001, 63351-001, 63351001, 63351-001, 3020-00-204-9504, 00-204-9504, 3020002049504, 002049504

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30APR 13, 197300-204-950426668 ( GEAR, ANTIBACKLASH, SPUR )
REFERENCE DRAWINGS & PICTURES

PROTRUDING HUB

Cross Reference | NSN 3020-00-204-9504
Part Number Cage Code Manufacturer
63351-10AHP5CURTISS-WRIGHT CONTROLS, INCDIV SENSORS & CONTROLS
63351-0010AHP5CURTISS-WRIGHT CONTROLS, INCDIV SENSORS & CONTROLS
63351-00101351SOUTHERN GEAR & MACHINE, INC.
Technical Data | NSN 3020-00-204-9504
Characteristic Specifications
TEETH QUANTITY84
TOOTH FORM STANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 10
STYLE DESIGNATOR PROTRUDING HUB
PITCH DIAMETER1.3115 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM
NOMINAL OUTSIDE DIAMETER1.343 INCHES
FACE NOMINAL WIDTH0.125 INCHES
ATTACHMENT METHOD CLAMP
SPECIAL FEATURESFOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY FREE FROM MERCURY CONTAMINATION