Part Number: 0503DC (Air pressure switch/normally clo) Part Number: 0503DC-BP-0006 (Part# 0503dc-bp-0006/n.c.) Part Number: 0503F4-15X (Connector) Part Number: 0503GMT (Qfn8) Part Number: 0503HC-470M-S (Inductor) Part Number: 0503HC-R56M-S (Inductor) Part Number: 0503L (No description) Part Number: 0503PEB1-8 (No description) Part Number: 0503QT (No description) Part Number: 0503QTL (No description) Part Number: 05-03R91G06R45R (Oring) Part Number: 0503S (Available) Part Number: 0503VO-BP-0005 (Air pressure switch/mpl-503-v-g ) Part Number: 0503W (No description)