| With all that a seasoned pilot or aircraft mechanic needs to concern themselves with, the last thing you need is to have to worry about something falling into, leaking into or crawling into an open port. We're not sure if that would actually happen, but these plastic plugs and caps will put your mind at ease. And it's a simple, yet inexpensive means to achieve serenity. They'll also cover and protect exposed pipe ends, bolts, cylinders, O-ring ports, flanges and JIC fittings. Caplugs
has been manufacturing protective closures for more than 60 years for many industries. There are different sizes of caps made from polyethylene, and they also have threaded aluminum plugs for flared fittings, threaded plastic caps for flared JIC fittings, plastic threaded plugs for SAE O-ring ports and stud hole flange protector caps. When substances threaten functionality, put a cap on it and be done with it. | 
