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NSN 3020-01-298-2673, 3020012982673
GEAR CLUSTER

Federal Supply Classification
FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number
NIIN 012982673
Codification Country
United States
Item Name Code
INC 36636
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 3020-01-298-2673

National Stock Number (NSN) 3020-01-298-2673, or NIIN 012982673, (gear cluster) was assigned April 13, 1989 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over a year. There have been 5 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7L521P1037, SPE7L121P0453, SPE7L019P0252, SPE7L018P2571, SPM7L513M2445. The total value of the awarded contracts has been US$ 24,777.12.

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 Apr 26, 2008, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 36636. [A CYLINDRICAL ITEM HAVING A FULL 360 DEGREE (6.282 RADIANS) COMPLEMENT OF TEETH ON TWO OR MORE SURFACES. IT MAY BE A ONE-PIECE CASTING OR COMPOSED OF TWO OR MORE SEPARATE ITEMS FIRMLY HELD TOGETHER BY WELDING, RIVETS, PINS, OR THE LIKE, TO FORM A SINGLE UNIT. IT IS DESIGNED TO MOUNT ON A SHAFT. FOR ITEMS CONSISTING OF A SHAFT WITH AN INTEGRAL COMPLEMENT(S) OR GEAR TEETH, SEE GEARSHAFT (AS MODIFIED). EXCLUDES:GEAR SUBASSEMBLY, SPEED DECREASER.]. 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 3020012982673 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

SPECIAL FEATURES
(FEAT) H1ST GEAR DATA: NO. OF TEETH 72; FACE NOMINAL WIDTH 0.310; PITCH DIA. 3.6000; PRESSURE ANGLE 20.0000; 2ND GEAR DATA: NO. OF TEETH 32; FACE NOMINAL WIDTH 0.310; PITCH DIA. 2.2857; PRESSURE ANGLE 20.0000
END ITEM IDENTIFICATION
(AGAV) F-15 A/C ACFT
BORE NOMINAL DIAMETER
(CWRS) 0.405 INCHES BOTH ENDS
BORE STYLE
(ANTP) INVOLUTE SPLINE BOTH ENDS
CONSTRUCTION
(CQCF) SOLID
DESIGN TYPE
(APGF) SPUR ALL GEARS
HARDNESS RATING
(CQFM) 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HUB NOMINAL DIAMETER
(CWTX) 1.950 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH
(CWQN) 0.230 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATOR
(CWTR) PLAIN BETWEEN FIRST AND SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM-A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A331 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) STEEL COMP 4130 OR STEEL COMP 4140 OVERALL
NOMINAL OVERALL LENGTH
(CWFR) 0.850 INCHES
NOMINAL OUTSIDE DIAMETER
(CWCD) 2.402 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER
(CWCD) 3.686 INCHES FIRST GEAR
SPECIAL FEATURES
(FEAT) 1ST GEAR DATA: NO. OF TEETH 72; FACE NOMINAL WIDTH 0.310; PITCH DIA. 3.6000; PRESSURE ANGLE 20.0000; 2ND GEAR DATA: NO. OF TEETH 32; FACE NOMINAL WIDTH 0.310; PITCH DIA. 2.2857; PRESSURE ANGLE 20.0000
PRECISION CLASSIFICATION
(CWWK) QUALITY NUMBER 8 ALL GEARS
SPLINE PITCH DIAMETER
(BDTX) 0.4688 INCHES NOMINAL BOTH ENDS
SPLINE QUANTITY
(ABSA) 15 BOTH ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-STD-171 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) PHOSPHATE OVERALL
III MATERIAL
(MATT) STEEL COMP 4130 OR STEEL COMP 4140 OVERALL
MATERIAL
(MATT) STEEL COMP 4130 OVERALL OR STEEL COMP 4140 OVERALL
III END ITEM IDENTIFICATION
(AGAV) F-15 A/C ACFT

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