A piping device usually formed of nonferrous metal which is connected to a plumbing fixture for waste drainage and for the purpose of preventing sewer gas from backing up beyond a desired point by forming a water seal in the line. This is accomplished by its peculiar shape which is usually in the form of a letter p or s.
NSN 6620-01-599-2011
NSN 6220-01-122-8012
NSN 5965-01-488-4332
NSN 5999-00-614-5275
NSN 5925-01-455-8639
NSN 6320-00-937-5625
NSN 5998-01-338-8501
NSN 5990-01-581-5103
NSN 5999-01-495-6813
NSN 5910-00-663-5865
NSN 5990-01-642-5748
NSN 6645-00-975-6941