Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5S6120-00 found under Retainer Assembly Diaphragm by Mil Tech Mfg Inc. The National Stock Number assigned to this part is 2910004096549, and the Federal Supply Class is 2910 Engine Fuel System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5S6120-00.