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 5945-01-455-2330
NSN 6320-00-882-7061
NSN 5905-00-084-9017
NSN 6130-01-007-4611
NSN 5945-01-259-6484
NSN 6105-01-298-1422
NSN 5925-00-373-0936
NSN 4140-00-228-3661
NSN 5905-00-053-0364
NSN 6610-01-254-4196
NSN 5945-00-355-1158
NSN 5965-00-328-6884