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 5925-01-587-0674
NSN 5996-01-146-4202
NSN 6105-00-526-8144
NSN 5935-00-728-2096
NSN 6320-01-399-6177
NSN 5960-01-053-4358
NSN 6650-01-433-3520
NSN 5965-01-259-9591
NSN 5975-01-583-8674
NSN 6610-00-864-1096
NSN 5965-00-232-1925
NSN 5910-01-415-0273