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 6650-00-139-4854
NSN 6130-00-283-4329
NSN 6145-01-102-5698
NSN 6150-01-368-3302
NSN 5999-01-588-9512
NSN 6145-00-104-6047
NSN 5835-01-423-9203
NSN 5965-01-165-8516
NSN 6650-01-135-8835
NSN 5855-01-566-6869
NSN 5965-01-240-0233
NSN 4140-00-550-2994