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 6650-01-633-2430
NSN 5895-01-631-5111
NSN 5975-01-434-1773
NSN 4140-01-223-6079
NSN 5895-01-371-3311
NSN 5835-01-283-9691
NSN 6650-00-658-9627
NSN 4140-01-304-5477
NSN 6220-01-442-3662
NSN 5996-01-122-7295
NSN 6110-00-248-7475
NSN 5910-01-504-4645