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 5996-00-006-5807
NSN 5996-01-306-3695
NSN 6645-01-434-5674
NSN 5895-01-356-8631
NSN 5998-01-651-9986
NSN 5895-00-098-5431
NSN 6320-00-977-3930
NSN 5950-01-196-7158
NSN 5935-00-995-4742
NSN 5935-00-661-0825
NSN 6620-00-388-0047
NSN 6610-00-079-1508