28--VALVE,BLEED START

Description: The notice seeks 69 each of valve, bleed start, NSN 0R-2840-016666867-B8, reference 5146T31P01, with delivery FOB origin. The part requires engineering source approval by the design control activity to maintain its quality, because qualified sources possess unique design capability, skills, and manufacturing or repair knowledge. Alternate sources must qualify under procedures approved by the cognizant Government engineering activity.