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NSN 3020-01-025-8567, 3020010258567
GEAR,ANTIBACKLASH,SPUR

Federal Supply Classification
FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number
NIIN 010258567
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 3020-01-025-8567

National Stock Number (NSN) 3020-01-025-8567, or NIIN 010258567, (gear,antibacklash,spur) was assigned August 11, 1976 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 somewhat common among different platforms, belonging to 2 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 23, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.

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 3020010258567 contains an unknown precious metal.

This NSN is associated to Schedule B 8483409000: gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333612: speed changer, industrial high-speed drive, and gear manufacturing.

This information was last updated on .


Technical Characteristics

III MATERIAL
(MATT) ALUMINUM ALLOY 6061 OVERALL
ATTACHMENT METHOD
(ABSX) CLAMP
BACKLASH DESIGNATION
(BDZQ) GRADE E
BORE NOMINAL DIAMETER
(CWRS) 0.120 INCHES BOTH ENDS
BORE STYLE
(ANTP) PLAIN BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH
(CWWC) 0.135 INCHES SECOND END
FACE NOMINAL WIDTH
(CWRM) 0.110 INCHES
HUB NOMINAL DIAMETER
(CWTX) 0.182 INCHES SECOND END
HUB STYLE DESIGNATOR
(CWTR) SPLIT SECOND END
HUB STYLE DESIGNATOR
(CWTR) PLAIN FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) ALUMINUM ALLOY 6061 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END
(CWQL) 0.063 INCHES FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END
(CWQL) 0.140 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 1.009 INCHES
PITCH DIAMETER
(AGJS) 0.9885 INCHES MINIMUM AND 0.9895 INCHES MAXIMUM
PRECISION CLASSIFICATION
(CWWK) QUALITY NUMBER 10
PRESSURE ANGLE
(CWPP) 20.0000 DEGREES
TOOTH FORM
(CWNH) STANDARD
STYLE DESIGNATOR
(STYL) PROTRUDING HUBS
SURFACE TREATMENT
(SFTT) ANODIZE OVERALL
TEETH QUANTITY
(AJLA) 95

Manufacturer Part Numbers


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