4820-00-753-0066 (9876-001PCALP181)
4820-00-753-0066 is equivalent to manufacture part number 20190C01S0025. It is a safety relief 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.