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 5835-00-289-9080
NSN 5960-01-215-0277
NSN 5920-00-359-9771
NSN 6130-01-350-3585
NSN 2925-01-129-1261
NSN 6240-00-332-2084
NSN 6130-01-132-1871
NSN 5985-01-444-6884
NSN 5855-01-658-6119
NSN 6240-00-215-8550
NSN 5999-01-109-9753
NSN 6645-01-500-0827