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 5905-00-232-9244
NSN 5905-01-171-5895
NSN 5996-01-152-2948
NSN 5920-00-452-0963
NSN 5985-00-291-9820
NSN 6240-00-204-9355
NSN 6220-00-132-6854
NSN 6620-01-462-1625
NSN 6145-01-417-2988
NSN 7035-00-803-3056
NSN 6320-01-522-0318
NSN 5998-01-608-4909