NSN 3040-01-240-3566, 3040012403566
Cancelled -> Replaced by 3040010114922

Federal Supply Classification: FSC 3040 - Miscellaneous Power Transmission Equipment
National Item Identification Number: NIIN 012403566
Codification Country: United States
Item Name Code: INC 60538
Criticality: (F) This item is a Flight Safety Critical Aircraft Part (FSCAP).
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 3040-01-240-3566

National Stock Number (NSN) 3040-01-240-3566, or NIIN 012403566, (gearshaft,bevel-spur) was assigned September 12, 1986 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 3040010114922.

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, 2 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 Dec 30, 2018. There have been 7 contracts issued for this part number, with 17 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A519F054U, SPE4A519F3526, SPE4A518F654S, SPE4A115G0006, SPE4A115G0006. The total value of the awarded contracts has been US$ 2,931,087.83.

This NSN is somewhat common among different platforms, belonging to 3 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 18, 2020, 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 data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 60538. [A GEARSHAFT WITH ONE OR MORE COMPLEMENTS OF BEVEL GEAR TEETH AND ONE OR MORE COMPLEMENTS OF SPUR GEAR TEETH.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3040012403566 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

END ITEM IDENTIFICATION: (AGAV) TF33-PW-100A ENGINE
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) SPUR GEAR DATA: 55 TEETH,PRESSURE ANGLE 22.50 DEG,DIAMETRAL PITCH 8.7816,ROOT DIA 5.966 IN. TO 5.976 IN.,SPIRAL BEVEL GEAR DATA: 67 TEETH,DIAMETRAL PITCH 8.2947 IN.,ROTATION CW,NORMAL PRESSURE ANGLE 20 DEG,PITCH ANGLE 78.2595 DEG; APPL TO GEARBOX,ACCESORY D.,P/N 765400,NSN 2840-01-020-1322
SPECIAL FEATURES: (FEAT) A FAILURE COULD CAUSE CATASTROPHIC OR CRITICAL FAILURE RESULTING IN THE LOSS OF OR SERIOUS DAMAGE TO THE AIRCRAFT OR WEAPON SYSTEM OR AN UNCOMMANDED ENGINE SHUTDOWN THAT JEOPARDIZES SAFETY