American Petroleum Institute

API 14L

Lock Mandrels and Landing Nipples

53 companies listed on Oilfield Index hold API 14L (Lock Mandrels and Landing Nipples), issued by the American Petroleum Institute.

Categories these companies serve

Certified companies 53

“API Composite List” means the company holds an active licence for this specification on the American Petroleum Institute’s public Composite List; “claimed by vendor” means the company lists it and the list does not confirm it. Certificate files are available to signed-in members. Claim your listing to keep yours current.