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 5965-01-364-1232
NSN 6110-00-136-9590
NSN 5945-01-310-5730
NSN 5930-01-296-8570
NSN 6130-00-035-3898
NSN 6130-01-261-6861
NSN 5905-01-186-0625
NSN 6650-01-528-5329
NSN 6645-00-679-8203
NSN 5950-01-384-3671
NSN 5930-00-514-2095
NSN 2925-00-964-7128