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 5895-01-520-8158
NSN 6610-01-192-0136
NSN 6620-01-046-3648
NSN 6650-01-089-6192
NSN 5945-01-023-8489
NSN 5920-00-005-9804
NSN 5935-01-332-8495
NSN 6130-01-561-0544
NSN 5855-00-055-1694
NSN 5965-01-104-5102
NSN 5855-01-098-9038
NSN 6645-00-690-0423