NSN 2990-00-508-6425, 2990005086425
STACK AND JACKET ASSEMBLY,EXHAUS

Federal Supply Classification: FSC 2990 - Miscellaneous Engine Accessories, Nonaircraft
National Item Identification Number: NIIN 005086425
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: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 2990-00-508-6425

National Stock Number (NSN) 2990-00-508-6425, or NIIN 005086425, (stack and jacket assembly,exhaus) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

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 2990005086425 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) CONSISTS OF EXHAUST STACK JACKET ASSY PT NO. 820-146-1,EXHAUST STACK ASSY PT NO. 820-146-7,BRACKET PT NO. 820-146-5,BRACKET 820-146-9,BRACKET PT NO. 820-146-6,OUTLET EXHAUST STACK PT NO. 820-146-4
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) DCONSISTS OF EXHAUST STACK JACKET ASSY PT NO. 820-146-1,EXHAUST STACK ASSY PT NO. 820-146-7,BRACKET PT NO. 820-146-5,BRACKET 820-146-9,BRACKET PT NO. 820-146-6,OUTLET EXHAUST STACK PT NO. 820-146-4