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 6320-00-504-1214
NSN 7035-01-352-0766
NSN 6240-00-966-8717
NSN 6220-00-900-4439
NSN 5985-00-554-4599
NSN 6145-01-234-6301
NSN 6620-00-248-6950
NSN 5965-01-452-4189
NSN 6145-01-495-2671
NSN 5998-01-361-8846
NSN 6130-01-395-9506
NSN 6145-00-061-9154