>> Search results for: 18991A1 NSN Search Results National Stock Number (NSN) Description 5985-99-797-2389, 5985997972389 GAUGE ASSEMBLY 6685-66-098-3063 , 6685660983063 GAUGE ASSY 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