NSN 3020-00-042-3946

Part Details | SPUR ANTIBACKLASH GEAR

3020-00-042-3946 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: L310014090, 1340063, 1340063150, 1340063-150, 3020-00-042-3946, 00-042-3946, 3020000423946, 000423946

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30MAY 06, 196700-042-394626668 ( GEAR, ANTIBACKLASH, SPUR )
REFERENCE DRAWINGS & PICTURES

PROTRUDING HUB

GEAR,ANTIBACKLASH,S | 3020-00-042-3946, 000423946
Cross Reference | NSN 3020-00-042-3946
Part Number Cage Code Manufacturer
L31001409036090LOCKHEED MARTIN LIBRASCOPECORP
134006310001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
1340063-15010001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 3020-00-042-3946
Characteristic Specifications
TEETH QUANTITY150
TOOTH FORM STANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 12
STYLE DESIGNATOR PROTRUDING HUB
PITCH DIAMETER1.5625 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER1.581 INCHES
FACE NOMINAL WIDTH0.125 INCHES
ATTACHMENT METHOD MOUNTING HOLE