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 5950-01-265-6995
NSN 6650-00-963-1692
NSN 5910-00-025-0451
NSN 6135-00-416-2898
NSN 5985-01-505-1260
NSN 5895-00-033-7634
NSN 5895-01-197-7401
NSN 5945-01-487-7149
NSN 5905-01-387-2138
NSN 2925-00-698-4882
NSN 5990-01-034-2390
NSN 5985-01-359-2605