Description: code to convey specific information about the item of supply, initiated by a military service, NATO country, federal/civil agency or various Contractor Support Weapons Systems; Name: Nato stock number
Description: 13-digit numeric code, identifying all the standardized material items of supply as they have been recognized by the United States Department of Defense; Name: National stock number
Description: amount of the absolute value of the total head above the head, equivalent to the vapour pressure of the liquid at the particular temperature, with reference to the NPSH datum plane; Name: net positive suction head