4820-01-425-9561 STEM,FLUID VALVE Index 4820-01-425-9563 CAP,VALVE

National Stock Number:
3020-01-425-9562

Federal Supply Class:
3020

National Item Identification Number:
014259562

Description:
GEAR,ANTIBACKLASH,SPUR

Detail:
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.


Manufacturer Information:
1237338919207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12373389-101365MARINE CORPS LOGISTICS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE-MICC LOGISTICS OPERATIONS CENTER
S9704A-Z5D84R00328DESIGNATRONICS INCORPORATED
1273389-105606GENERAL DYNAMICS-OTS, INC.
12373389-119207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
MATERIALSTEEL COMP 303 FIRST GEAR
STEEL COMP 303 HUB
STEEL COMP 303 SECOND GEAR
STEEL COMP 302 SPRING
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE FIRST GEAR
ASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE HUB
ASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR
ASTM-A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING
SURFACE TREATMENTPASSIVATE FIRST GEAR
PASSIVATE HUB
PASSIVATE SECOND GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE FIRST GEAR
MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE HUB
MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE SECOND GEAR
TEETH QUANTITY84
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONACCURACY GRADE 12
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER1.7500 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER1.790 INCHES
FACE NOMINAL WIDTH0.104 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.221 INCHES SECOND END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.187 INCHES BOTH ENDS
HUB STYLE DESIGNATORSPLIT SECOND END
HUB NOMINAL DIAMETER0.248 INCHES SECOND END
CLAMPING SURFACE NOMINAL LENGTH0.221 INCHES SECOND END
ATTACHMENT METHODSLOT


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