>> Search results for: 639103001 NSN Search Results National Stock Number (NSN) Description 4240-01-448-8672, 4240014488672 FACEPIECE,BREATHING EQUIPMENT 4240-01-536-7671 , 4240015367671 FACEPIECE,BREATHING EQUIPMENT 4720-01-537-0662, 4720015370662 HOSE,AIR BREATHING 4730-01-538-9455 , 4730015389455 COUPLING,HOSE 4730-01-538-9844, 4730015389844 COUPLING,HOSE 5331-01-540-0879 , 5331015400879 O-RING 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information