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 5930-00-503-2173
NSN 5920-00-294-0753
NSN 6685-00-088-4539
NSN 5835-01-158-6878
NSN 6105-00-925-2226
NSN 5998-01-179-5890
NSN 5975-00-797-8931
NSN 5985-01-631-2997
NSN 5930-01-388-2000
NSN 6645-01-538-0425
NSN 5996-00-186-8709
NSN 6135-00-681-2702