>> Search results for: 23TR4A NSN Search Results National Stock Number (NSN) Description 5990-00-822-5451, 5990008225451 Cancelled -> Replaced by 5990006364120 5990-15-078-0689 , 5990150780689 SYNCHRO (1), RECEIV 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