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 6620-01-408-4464
NSN 5960-00-950-9893
NSN 5975-01-473-7204
NSN 6145-01-166-3714
NSN 5996-00-363-9666
NSN 5835-01-080-7784
NSN 6145-01-179-0645
NSN 6130-00-216-9214
NSN 5925-00-230-8723
NSN 6130-00-533-9659
NSN 6620-01-461-6427
NSN 5925-01-553-8725