4410-00-378-0004 (E1280PC56)
4410-00-378-0004 is equivalent to manufacture part number 1175PC56. It is a cap and is classified under Federal Supply Class 4410 (4410 - Industrial Boilers), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4410 - Industrial Boilers and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.