>> Search results for: 90SM1250001ITEM18 NSN Search Results National Stock Number (NSN) Description 4820-01-371-7686, 4820013717686 VALVE,EXPANSION 4820-01-371-8806 , 4820013718806 VALVE,SAFETY RELIEF 4820-01-376-2990, 4820013762990 VALVE,SAFETY RELIEF 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