Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 213.40 2 1 2 1 4NPT CBM0 300PSI found under Gage Pressure Dial Indicating by Wika Holding Lp. The National Stock Number assigned to this part is 6685002699940, 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 213.40 2 1 2 1 4NPT CBM0 300PSI.