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 5999-01-652-7528
NSN 6610-01-473-5678
NSN 5965-01-234-6844
NSN 6110-01-113-0853
NSN 6220-01-264-0118
NSN 6150-01-031-9740
NSN 5996-00-461-8645
NSN 7035-00-541-8516
NSN 5915-01-272-4182
NSN 5999-00-382-6452
NSN 6150-00-430-0651
NSN 2925-01-043-9786