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 6620-01-535-6925
NSN 6220-01-212-3254
NSN 7035-01-211-5636
NSN 5950-01-422-0069
NSN 6610-01-549-0491
NSN 5950-01-593-8366
NSN 5990-01-414-2778
NSN 2925-00-233-5644
NSN 5925-00-348-3591
NSN 6645-00-754-4108
NSN 5910-01-014-5129
NSN 6145-00-971-2431