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NSN 3020-00-187-7859, 3020001877859
GEAR,SPUR

Federal Supply Classification
FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number
NIIN 001877859
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 3020-00-187-7859

National Stock Number (NSN) 3020-00-187-7859, or NIIN 001877859, (gear,spur) was assigned March 16, 1973 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 5 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 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 Jan 03, 2018. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7L518P0339, SPE7L516V1342. The total value of the awarded contracts has been US$ 7,917.00.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been very little 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 May 30, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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 3020001877859 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 HARDNESS RATING
(CQFM) 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
III MATERIAL
(MATT) STEEL COMP 4340 OVERALL
ATTACHMENT METHOD
(ABSX) MOUNTING HOLE
BODY STYLE
(AAQL) PLAIN, SOLID
BOLT HOLE CIRCLE NOMINAL DIAMETER
(CWZN) 2.500 INCHES AXIALLY THROUGH FLANGE
BORE NOMINAL DIAMETER
(CWRS) 0.975 INCHES BOTH ENDS
BORE STYLE
(ANTP) PLAIN BOTH ENDS
FACE NOMINAL WIDTH
(CWRM) 0.260 INCHES
FLANGE NOMINAL THICKNESS
(CWPS) 0.280 INCHES
FLANGE NOMINAL DIAMETER
(CWNK) 3.875 INCHES
HARDNESS RATING
(CQFM) 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HUB NOMINAL DIAMETER
(CWTX) 1.215 INCHES BETWEEN BODY AND FLANGE
HUB STYLE DESIGNATOR
(CWTR) PLAIN FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) STEEL COMP 4340 OVERALL
MOUNTING HOLE NOMINAL DIAMETER
(CWZK) 0.278 INCHES AXIALLY THROUGH FLANGE
MOUNTING HOLE TYPE AND QUANTITY
(CTQY) 4 PLAIN AXIALLY THROUGH FLANGE
NOMINAL DISTANCE BETWEEN OUTER BODY FACE AND INNER FLANGE FACE
(CWSH) 0.505 INCHES
NOMINAL OUTSIDE DIAMETER
(CWCD) 1.570 INCHES
PITCH DIAMETER
(AGJS) 1.4286 INCHES NOMINAL
PRECISION CLASSIFICATION
(CWWK) QUALITY NUMBER 10 OR QUALITY NUMBER 11
PRESSURE ANGLE
(CWPP) 25.0000 DEGREES
STYLE DESIGNATOR
(STYL) HUBLESS
SURFACE TREATMENT
(SFTT) PHOSPHATE OVERALL
TEETH QUANTITY
(AJLA) 20
TEST DATA DOCUMENT
(TEST) 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TOOTH FORM
(CWNH) STANDARD

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