A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5998-01-384-3404
NSN 5915-00-747-9679
NSN 5925-00-226-1155
NSN 5915-01-090-1842
NSN 4140-01-136-5530
NSN 5895-01-420-5887
NSN 5998-00-983-5220
NSN 6145-01-089-7984
NSN 5905-00-624-5521
NSN 5910-01-330-7294
NSN 5985-00-336-1095
NSN 5965-01-005-0341