Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S313D-41 2-0-85PSIG1 4NPT found under Gage Pressure Dial Indicating by Robertshaw Controls Company. The National Stock Number assigned to this part is 6685000578784, 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 S313D-41 2-0-85PSIG1 4NPT.