>> Search results for: MILPRF22594B NSN Search Results National Stock Number (NSN) Description 4520-01-198-0737, 4520011980737 Cancelled -> Replaced by 4520012994002 4520-01-533-5507 , 4520015335507 HEATER,VENTILATION,DUCT TYPE 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