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 5915-01-468-6362
NSN 5895-01-368-6025
NSN 5935-01-013-9680
NSN 5975-01-512-4783
NSN 4140-01-053-2999
NSN 5999-00-406-7908
NSN 5905-01-476-9673
NSN 5895-01-463-7659
NSN 5855-01-333-7108
NSN 6130-00-054-1038
NSN 5905-01-177-5571
NSN 5935-00-303-2042