Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0853574 found under Parts Kit Rotary Pump by Intrupa Mfg Co. The National Stock Number assigned to this part is 4320000853574, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 0853574.