An item permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It is specifically designed and/or cleaned for oxygen systems. See also valve, check; valve, stop-check.
NSN 5998-01-459-1063
NSN 6645-00-392-8728
NSN 5965-01-543-8913
NSN 5996-00-566-3861
NSN 5998-00-248-4964
NSN 5998-01-116-3499
NSN 5945-01-346-1793
NSN 6150-01-439-8339
NSN 5996-01-263-6776
NSN 6220-01-368-6879
NSN 5996-01-129-6422
NSN 5950-00-811-4520