NSN 2990-01-117-0813, 2990011170813
ADAPTER,EXHAUST

Federal Supply Classification: FSC 2990 - Miscellaneous Engine Accessories, Nonaircraft
National Item Identification Number: NIIN 011170813
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.

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DLMS^® Summary

National Stock Number 2990-01-117-0813

National Stock Number (NSN) 2990-01-117-0813, or NIIN 011170813, (adapter,exhaust) was assigned August 8, 1981 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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

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

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 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 2990011170813 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) NMATERIAL IRON PER ASTM-A47; CADMIUM PLATED PER FED SPEC QQ-P-416; 1.930 IN. O/A LG; ONE END 2.625 IN. OD WITH FOUR SLOTS EQUALLY SPACED; SLOT 0.750 IN. LONG BY 0.060 IN. WIDE; OTHER END THD INTERNAL 2.500 IN. NPTF
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) MATERIAL IRON PER ASTM-A47; CADMIUM PLATED PER FED SPEC QQ-P-416; 1.930 IN. O/A LG; ONE END 2.625 IN. OD WITH FOUR SLOTS EQUALLY SPACED; SLOT 0.750 IN. LONG BY 0.060 IN. WIDE; OTHER END THD INTERNAL 2.500 IN. NPTF