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 5996-01-392-7220
NSN 6240-01-363-0477
NSN 7035-00-206-6123
NSN 5905-01-464-1546
NSN 5950-00-152-8984
NSN 6645-00-940-0774
NSN 4140-00-993-6128
NSN 5998-01-482-3118
NSN 5950-01-161-5858
NSN 5950-00-244-8811
NSN 5998-00-532-0806
NSN 7035-01-437-4137