2990-12-344-7715 (142 39 15 5591423915)
2990-12-344-7715 is equivalent to manufacture part number 559. It is a exhaust pipe flange and is classified under Federal Supply Class 2990 (2990 - Miscellaneous Engine Accessories, Nonaircraft), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 2990 - Miscellaneous Engine Accessories, Nonaircraft and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.