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 5985-01-424-6449
NSN 5998-01-090-0331
NSN 6610-01-342-0468
NSN 6105-00-362-1361
NSN 6150-00-959-5565
NSN 6110-01-174-9569
NSN 5920-00-853-2778
NSN 5996-00-086-2838
NSN 4140-01-051-7583
NSN 6645-01-438-6986
NSN 2925-00-408-9829
NSN 6135-01-056-4609