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 7035-01-314-7559
NSN 6650-01-027-1181
NSN 2925-01-030-6580
NSN 6145-01-499-5031
NSN 6610-01-174-6820
NSN 6620-00-270-3275
NSN 6130-00-592-5800
NSN 5999-01-506-5737
NSN 6685-01-492-6556
NSN 2925-00-698-4882
NSN 6150-01-310-5120
NSN 5999-01-310-9133