Looking for a reliable aerospace & aviation parts distributor? Purchasing Efficiency, owned and operated by ASAP Semiconductor, is here to help. Our vast inventory of aviation parts and military aircraft parts such as Screw Drum comes from a cache of reliable manufacturers including Koehring Co Lorain Div and other aviation parts suppliers. The convenient search tool we offer allows customers to look up parts by item names like Screw Drum, part numbers such as 1454, and even NSN codes including 5305011509203. Our strict No China Sourcing Pledge ensures that all your parts come from reliable and trustworthy manufacturers. To see how Purchasing Efficiency can be your aviation military parts sourcing solution, submit an RFQ today.