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 6650-01-050-8680
NSN 2925-01-307-2637
NSN 5895-01-418-4383
NSN 5855-01-260-7445
NSN 5990-01-424-2954
NSN 6110-01-429-1067
NSN 6610-00-853-3874
NSN 6220-01-186-4500
NSN 5925-01-137-5668
NSN 7035-01-514-2221
NSN 2925-00-871-8728
NSN 5835-00-830-6416