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 4140-01-237-5799
NSN 5935-01-257-1668
NSN 6145-00-078-9917
NSN 5915-01-455-2179
NSN 5998-00-489-1956
NSN 5975-01-157-8140
NSN 5920-01-634-0250
NSN 5925-00-061-4619
NSN 6685-00-916-8274
NSN 6110-01-082-2968
NSN 5996-01-141-6916
NSN 6610-01-552-3708