>> Search results for: 5423B NSN Search Results National Stock Number (NSN) Description 5999-01-148-8005, 5999011488005 Cancelled -> Replaced by 5999011860343 5999-01-234-5199 , 5999012345199 HEAT SINK,ELECTRICAL-ELECTRONIC 1 Related Inventory Repair 125423BCondition RPVALVE Readily AvailableAdd to RFQ 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