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 6145-01-406-6333
NSN 5910-01-381-2110
NSN 6685-01-322-8332
NSN 5930-00-221-7490
NSN 6650-01-300-8230
NSN 5930-01-115-8890
NSN 6320-01-072-2073
NSN 6145-01-443-0591
NSN 5996-00-296-8041
NSN 5990-01-434-7913
NSN 6320-01-211-6578
NSN 6610-00-841-8221