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 5999-01-189-6277
NSN 5950-00-147-7866
NSN 6130-01-629-3244
NSN 5945-01-240-3871
NSN 5935-01-418-6348
NSN 6130-01-451-7539
NSN 5915-01-099-4153
NSN 6685-01-644-0231
NSN 6320-01-362-3037
NSN 5915-00-131-6344
NSN 6220-01-261-6251
NSN 6685-01-055-5298