Part Number: 122879-8 (Circuit card assembl) Part Number: 12287980 (Tube assy) Part Number: 12287981 (Holder) Part Number: 12287983 (Collar) Part Number: 12287993 (Hardware) Part Number: 12287994 (Tube) Part Number: 12287A (Poppet) Part Number: 12287NYA14F-NA (New in stock) Part Number: 12287REVC (Ne) Part Number: 12287T (Poppet) Part Number: 12288 (Ne) Part Number: 12-288-0 (No description) Part Number: 1228800 (Ne) Part Number: 12288000 (Cover)