National Item Identification Number
01-463-5527
014635527
3020-01-463-5527
3020014635527
National Stock Number
Item Name
GEAR,ANTIBACKLASH,SPUR
Federal Supply Class
3020
Description
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.
Commercial and Government Entity Code (Supplier Data)
20418
20418
00141
Reference Numbers (Part Numbers)
ES3902
ES3902-009
P21-4-64-Q12
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
TEETH QUANTITY
PRESSURE ANGLE;
Required Description
STEEL COMP 303 HUB
STEEL COMP 302 SPRING
MIL-S-7720 MIL SPEC SINGLE MATERIAL R