Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SEAT - SEAL KIT 3810SJ-6 1.5IN found under Repair Kit Valve by Grinnell Supply Sales Co. The National Stock Number assigned to this part is 4820014302652, 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 SEAT - SEAL KIT 3810SJ-6 1.5IN.