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 5945-00-079-9274
NSN 5950-01-321-6178
NSN 6620-01-424-6925
NSN 5985-01-259-3386
NSN 6220-01-393-1808
NSN 6220-01-272-5872
NSN 6150-01-554-6955
NSN 6130-00-364-7801
NSN 5999-01-201-2341
NSN 5998-00-067-0268
NSN 5905-01-658-9551
NSN 5965-01-111-6031