Part Number: 0503CG129C9B1 (No description) Part Number: 0503CG129C9B12PF (No description) Part Number: 0503CUS (Screw) Part Number: 0503D11308 (Circuit board) Part Number: 0503D-552A (No description) 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)