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 6145-00-269-4271
NSN 5855-01-543-5011
NSN 6320-00-937-5625
NSN 5895-01-045-2037
NSN 5895-00-522-7935
NSN 6150-01-487-6624
NSN 6135-01-139-1700
NSN 5990-00-422-2093
NSN 6220-01-286-9100
NSN 2925-00-390-7546
NSN 6650-00-361-8222
NSN 5920-00-730-4343