Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6011-1 4B found under Snubber Pressure Gage by Parker Hannifin Corporation. The National Stock Number assigned to this part is 6685007616287, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6011-1 4B.