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NSN 3020-01-425-8211, 3020014258211
GEAR,ANTIBACKLASH,SPUR

Federal Supply Classification
FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number
NIIN 014258211
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 3020-01-425-8211

National Stock Number (NSN) 3020-01-425-8211, or NIIN 014258211, (gear,antibacklash,spur) was assigned February 28, 1996 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, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

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

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 01, 2020, this NSN's acquisition method was noted as: Not established. Not established.

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 3020014258211 does not contain precious metals.

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

END ITEM IDENTIFICATION
(AGAV) 2320-01-123-1610
ATTACHMENT METHOD
(ABSX) SLOT
BORE NOMINAL DIAMETER
(CWRS) 0.187 INCHES BOTH ENDS
BORE STYLE
(ANTP) PLAIN BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH
(CWWC) 0.250 INCHES SECOND END
FACE NOMINAL WIDTH
(CWRM) 0.250 INCHES
HUB NOMINAL DIAMETER
(CWTX) 0.248 INCHES SECOND END
HUB STYLE DESIGNATOR
(CWTR) SPLIT SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM-A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE FIRST GEAR
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE HUB
MATERIAL
(MATT) STEEL COMP 302 SPRING
MATERIAL
(MATT) STEEL COMP 303 FIRST GEAR
MATERIAL
(MATT) STEEL COMP 303 HUB
MATERIAL
(MATT) STEEL COMP 303 SECOND GEAR
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END
(CWQL) 0.310 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER
(CWCD) 4.359 INCHES
PITCH DIAMETER
(AGJS) 4.1250 INCHES NOMINAL
PRECISION CLASSIFICATION
(CWWK) QUALITY NUMBER 10
PRESSURE ANGLE
(CWPP) 20.0000 DEGREES
STYLE DESIGNATOR
(STYL) PROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
TEETH QUANTITY
(AJLA) 33
III MATERIAL
(MATT) STEEL COMP 303 FIRST GEAR
III MATERIAL
(MATT) STEEL COMP 303 HUB
III MATERIAL
(MATT) STEEL COMP 303 SECOND GEAR
III MATERIAL
(MATT) STEEL COMP 302 SPRING

Manufacturer Part Numbers


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