4820-01-276-1432 (SP80CL200TY3THRDEDYB01/4IN.)
4820-01-276-1432 is equivalent to manufacture part number B345-1/4IN.. It is a check valve and is classified under Federal Supply Class 4820 (4820 - Valves, Nonpowered), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4820 - Valves, Nonpowered and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.