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 5910-01-061-1443
NSN 5935-00-933-0150
NSN 6105-01-351-5998
NSN 5975-01-650-5677
NSN 6685-00-113-8949
NSN 6685-01-056-9171
NSN 5999-01-424-2856
NSN 5996-00-191-2133
NSN 6135-01-231-4809
NSN 6150-00-474-6585
NSN 2925-01-118-6125
NSN 6610-01-210-4306