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 6645-01-467-9983
NSN 5945-01-039-5693
NSN 5965-01-645-4101
NSN 2925-01-520-4194
NSN 5920-01-494-8101
NSN 5905-00-944-9278
NSN 6240-01-181-4474
NSN 5999-00-932-2509
NSN 6110-00-421-1650
NSN 5905-01-444-1245
NSN 5998-01-106-3446
NSN 5985-01-363-0302