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 6320-01-039-5891
NSN 5990-01-492-1114
NSN 6150-01-106-9639
NSN 5965-01-600-0566
NSN 6240-00-600-7138
NSN 5905-01-121-5468
NSN 6610-01-067-6591
NSN 5895-01-394-5343
NSN 6130-01-629-3437
NSN 6620-01-296-0871
NSN 6320-01-136-8505
NSN 6220-01-270-4761