Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MOD 1122 found under Tank Pumping Unit Sewage Treatme by Envirovac Inc. The National Stock Number assigned to this part is 4630012994097, and the Federal Supply Class is 4630 Sewage Treatment Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MOD 1122.