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 6135-01-282-4326
NSN 5910-01-551-2537
NSN 6145-00-249-6641
NSN 5855-00-879-7245
NSN 7035-00-252-7467
NSN 5895-01-458-2448
NSN 5965-00-170-5254
NSN 6110-01-388-3348
NSN 2925-01-380-0869
NSN 5999-00-739-2844
NSN 5990-01-131-2008
NSN 6105-00-943-1289