>> Search results for: EXTERNALSTANDARD1 NSN Search Results National Stock Number (NSN) Description 6550-01-320-0235, 6550013200235 REFERENCE STANDARD,CHLORIDE,POTASSIUM,AND SODIUM 6550-01-320-1160 , 6550013201160 REFERENCE STANDARD,LITHIUM,POTAS 6550-01-335-9910, 6550013359910 REFERENCE STANDARD, 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