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 5915-00-079-6415
NSN 6320-01-455-3394
NSN 4140-00-495-2848
NSN 6320-01-359-3921
NSN 6110-01-167-8906
NSN 5998-00-564-7433
NSN 5950-00-060-0942
NSN 5930-01-298-0792
NSN 5990-01-340-3575
NSN 6650-00-641-6139
NSN 5905-01-104-0587
NSN 6610-00-856-7136