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NSN 3020-01-039-6484, 3020010396484
GEAR,ANTIBACKLASH,SPUR

Federal Supply Classification
FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number
NIIN 010396484
Codification Country
United States
Item Name Code
INC 26668
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 3020-01-039-6484

National Stock Number (NSN) 3020-01-039-6484, or NIIN 010396484, (gear,antibacklash,spur) was assigned April 25, 1977 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 26668. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3020010396484 does not contain precious metals.

This information was last updated on .


Technical Characteristics

PRESSURE ANGLE
(CWPP) 20.0000 DEGREES
CLAMPING SURFACE NOMINAL LENGTH
(CWWC) 0.250 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER
(CWCD) 1.687 INCHES
III MATERIAL
(MATT) STEEL COMP 303 OVERALL
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
PRECISION CLASSIFICATION
(CWWK) QUALITY NUMBER 12
BORE NOMINAL DIAMETER
(CWRS) 0.125 INCHES FIRST END
MATERIAL
(MATT) STEEL COMP 303 OVERALL
HUB STYLE DESIGNATOR
(CWTR) SPLIT FIRST END
TEETH QUANTITY
(AJLA) 160
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END
(CWQL) 0.188 INCHES FIRST END
BORE STYLE
(ANTP) PLAIN BOTH ENDS
PITCH DIAMETER
(AGJS) 1.6667 INCHES NOMINAL
FACE NOMINAL WIDTH
(CWRM) 0.104 INCHES
HUB NOMINAL DIAMETER
(CWTX) 0.188 INCHES FIRST END
STYLE DESIGNATOR
(STYL) PROTRUDING HUB

Manufacturer Part Numbers


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