Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S00-1045 POS4 found under Valve Locking by Ulstein Usa Inc. The National Stock Number assigned to this part is 4820014327098, 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 S00-1045 POS4.