>> Search results for: HB421 NSN Search Results National Stock Number (NSN) Description 7920-00-224-7987, 7920002247987 Cancelled -> Replaced by 7920006343083 5985-01-596-1181 , 5985015961181 WAVEGUIDE ASSEMBLY 7920-21-554-1254, 7920215541254 BRUSH,FILE CLEANER 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