Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 132B-6PP found under Valve Check by Leonard Charles Inc. The National Stock Number assigned to this part is 4820013431806, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 132B-6PP.