>> Search results for: DOC23 NSN Search Results National Stock Number (NSN) Description 6640-21-902-2131, 6640219022131 FURNACE,MUFFLE,LABO 6640-21-902-2130 , 6640219022130 FURNACE,MUFFLE,LABO 5995-98-204-9165, 5995982049165 CABLE ASSEMBLY,SPEC 6640-21-902-2128 , 6640219022128 DIFFERENTIAL THERMA 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