>> Search results for: O1849GRC228 NSN Search Results National Stock Number (NSN) Description 6645-01-322-2268, 6645013222268 TIME REFERENCE,ATOM 6645-01-399-6392 , 6645013996392 TIME REFERENCE ATO 6645-01-442-1885, 6645014421885 TIME REFERENCE,ATOMIC FREQUENCY 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