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 5996-00-972-3097
NSN 6320-01-411-7469
NSN 6610-01-018-9122
NSN 5965-00-193-2406
NSN 5985-01-100-0809
NSN 5935-01-485-1749
NSN 6135-00-756-6149
NSN 5930-00-461-4507
NSN 5985-00-223-1930
NSN 6105-01-621-9365
NSN 6620-01-085-8688
NSN 6610-00-195-7517