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 5835-00-725-2087
NSN 6145-00-182-2865
NSN 6685-01-438-3438
NSN 5905-01-211-6643
NSN 5999-01-430-4380
NSN 5915-00-189-1067
NSN 5965-01-464-3372
NSN 6240-01-443-0519
NSN 5895-01-214-2558
NSN 5910-01-113-0362
NSN 5835-01-325-5677
NSN 2925-01-347-9346