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 6650-01-244-9847
NSN 5895-01-009-6186
NSN 5950-00-224-3797
NSN 5999-01-195-3139
NSN 5905-01-287-6601
NSN 5950-01-417-6973
NSN 5990-00-288-1820
NSN 5965-01-498-3519
NSN 5975-00-260-1336
NSN 6320-01-162-5977
NSN 5925-01-089-6970
NSN 6620-01-512-1338