4420-01-005-8449 (5-144-02-030-001PC2)
4420-01-005-8449 is equivalent to manufacture part number 4-090-02-515-004. It is a bonnet assembly and is classified under Federal Supply Class 4420 (4420 - Heat Exchangers and Steam Condensers), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4420 - Heat Exchangers and Steam Condensers and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.