NSN 2840-01-064-4921, 2840010644921
SPACER,OUTPUT SHAFT

Federal Supply Classification: FSC 2840 - Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
National Item Identification Number: NIIN 010644921
Codification Country: United States
Item Name Code: INC 77777
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.

Availability: Readily Available Qualified Suppliers: We have 1 qualified suppliers

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DLMS^® Summary

National Stock Number 2840-01-064-4921

National Stock Number (NSN) 2840-01-064-4921, or NIIN 010644921, (spacer,output shaft) was assigned August 25, 1978 in the Federal Logistics Information System (FLIS). 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 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 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 Sep 14, 2011. There have been 3 contracts issued for this part number, with 3 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: SPM4A711MU773, SPM4A711MU773, SPM4A711MU773, SPM4A711MU773, SPM4A711MP593. The total value of the awarded contracts has been US$ 12,278.70.

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 Aug 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 77777. 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 2840010644921 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL AMS6370,BLACK OXIDE FINISH AMS2485,0.650 IN. NOM O/A LG,0.878 IN. MIN,0.880 IN. MAX OD BODY 1ST END,0.015 IN. MIN,0.020 IN. MAX BODY WALL THK,2ND END FLANGED,1.520 IN. NOM OD FLANGE,0.250 THK FLANGE,FLANGE CORNER OPPOSITE FACE CHAMFERED 30 DEG BY 0.040 IN. DP,4 SLOTS 0.020 IN. DP EQUALLY SPACED AROUND FLANGE FACE,2ND END ID CHAMFERED 45 DEG