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 6650-00-466-1697
NSN 5990-01-355-4694
NSN 5965-01-077-2124
NSN 6650-00-272-2271
NSN 5910-01-146-0338
NSN 4140-01-585-9196
NSN 6320-01-302-5157
NSN 4140-01-105-4823
NSN 5999-01-010-7431
NSN 6130-01-193-2240
NSN 5895-00-874-7430
NSN 5930-00-051-6383