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 5920-00-865-9341
NSN 6150-01-278-4181
NSN 5960-01-567-1096
NSN 6685-00-483-2982
NSN 6620-01-411-9489
NSN 6105-01-340-8045
NSN 5996-01-649-1277
NSN 6105-00-160-7804
NSN 6610-01-195-3497
NSN 5998-00-175-0645
NSN 5930-01-474-5487
NSN 6240-01-460-6349