NSN 3020-00-210-1290, 3020002101290
GEAR RACK

Federal Supply Classification: FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number: NIIN 002101290
Codification Country: United States
Item Name Code: INC 05135
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 3020-00-210-1290

National Stock Number (NSN) 3020-00-210-1290, or NIIN 002101290, (gear rack) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 002101290 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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

This NSN is assigned to Item Name Code (INC) 05135. [A BAR-LIKE ITEM WITH GEAR TEETH ON ONE FACE FOR ENGAGING WITH A SPUR, BEVEL, OR WORM GEAR, OR THE LIKE. IT IS SPECIFICALLY DESIGNED FOR STRAIGHT LINE MOTION.]. 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 3020002101290 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

MATERIAL: (MATT) STEEL COMP 8640 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) JAN-C-490,GRADE 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATOR: (STYL) ROUND
NOMINAL OVERALL LENGTH: (CWFR) 4.000 INCHES
PITCH HEIGHT: (CWMY) 0.5620 INCHES NOMINAL
PRESSURE ANGLE: (CWPP) 20.0000 DEGREES
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) 66 FED STD SINGLE MATERIAL RESPONSE OVERALL AND AISI/SAE 8640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
III MATERIAL: (MATT) STEEL COMP 8640 OVERALL
NOMINAL OUTSIDE DIAMETER: (CWCD) 0.624 INCHES
TOOTH FORM: (CWNH) STANDARD
TEETH QUANTITY: (AJLA) 40
HARDNESS RATING: (CQFM) 260.0 BRINELL STANDARD MINIMUM OVERALL AND 285.0 BRINELL STANDARD MAXIMUM OVERALL
NOMINAL THICKNESS: (CWCK) 0.592 INCHES
TEETH TYPE: (CWMW) SPUR
SURFACE TREATMENT: (MDCL) AISI/SAE 8640
SURFACE TREATMENT: (SFTT) PHOSPHATE OVERALL