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NSN 3020-00-977-2921, 3020009772921
GEAR,SPUR

Federal Supply Classification
FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number
NIIN 009772921
Codification Country
United States
Item Name Code
INC 05466
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 3020-00-977-2921

National Stock Number (NSN) 3020-00-977-2921, or NIIN 009772921, (gear,spur) was assigned February 6, 1982 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 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, with the most recent procurement date of Oct 18, 2012. There have been 7 contracts issued for this part number, with 7 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPM7M013M0363, SPM7M012M4839, SPM7MC11M4450, SPM7MC11M4450, SPM7MC11M2000. The total value of the awarded contracts has been US$ 364,598.40.

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 16, 2010, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 05466. [A GEAR, CYLINDRICAL IN FORM, WITH STRAIGHT TEETH ON THE OUTER SURFACE PARALLEL TO THE AXIS OF THE GEAR. SEE ALSO GEAR, ANTIBACKLASH, SPUR. FOR BULK MATERIAL, SEE ROD, PINION.]. 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 3020009772921 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

BODY STYLE
(AAQL) PLAIN, SOLID
BORE NOMINAL DIAMETER
(CWRS) 4.250 INCHES COUNTERBORE, FIRST END
BORE STYLE
(ANTP) W/COUNTERBORE COUNTERBORE, FIRST END
COUNTERBORE NOMINAL DEPTH
(CWTB) 1.156 INCHES COUNTERBORE, FIRST END
COUNTERBORE NOMINAL DIAMETER
(CWTG) 5.249 INCHES COUNTERBORE, FIRST END
END NOMINAL DIAMETER
(CWWN) 5.625 INCHES FIRST END
END NOMINAL LENGTH
(CWWH) 0.620 INCHES FIRST END
FACE NOMINAL WIDTH
(CWRM) 0.875 INCHES
FIRST STEP NOMINAL DIAMETER
(CWXB) 5.751 INCHES FIRST END
FIRST STEP NOMINAL LENGTH
(CWWS) 2.365 INCHES FIRST END
HUB STYLE DESIGNATOR
(CWTR) 2 STEPS FIRST END
HUB STYLE DESIGNATOR
(CWTR) PLAIN SECOND END
HUB NOMINAL DIAMETER
(CWTX) 6.250 INCHES SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-S-865,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) STEEL COMP 135M OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END
(CWQL) 0.760 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END
(CWQL) 3.365 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER
(CWCD) 13.953 INCHES
SECOND STEP NOMINAL DIAMETER
(CWXL) 6.250 INCHES FIRST END
SECOND STEP NOMINAL LENGTH
(CWXG) 0.391 INCHES FIRST END
PITCH DIAMETER
(AGJS) 13.8182 INCHES NOMINAL
PRECISION CLASSIFICATION
(CWWK) QUALITY NUMBER 12
PRESSURE ANGLE
(CWPP) 25.0000 DEGREES
SPECIAL FEATURES
(FEAT) EXTERNAL CUT-OUT OF GEAR TEETH WITH RADIUS OF 2.500 IN.
TOOTH FORM
(CWNH) STANDARD
STYLE DESIGNATOR
(STYL) PROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) NICKEL OVERALL
TEETH QUANTITY
(AJLA) 152
III MATERIAL
(MATT) STEEL COMP 135M OVERALL

Manufacturer Part Numbers


Related Inventory

3020-00-977-2921
009772921.3020
Condition NE
GEAR, SPUR
Readily Available
43034-022-00271
3020009772921
Condition NS
GEAR
Readily Available


 
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