>> Search results for: MA400D NSN Search Results National Stock Number (NSN) Description 3431-01-077-4984, 3431010774984 Cancelled -> Replaced by 3431008800563 3431-21-904-1143 , 3431219041143 WELDING MACHINE,ARC 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