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 6220-01-104-3006
NSN 5925-01-504-0181
NSN 6105-00-962-2512
NSN 4140-01-188-6977
NSN 5835-00-957-3565
NSN 5990-00-518-3195
NSN 6320-01-382-9676
NSN 5950-01-088-4924
NSN 6240-01-384-3887
NSN 5915-01-125-7540
NSN 5835-00-874-1085
NSN 6650-00-491-0277