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 5950-00-480-9718
NSN 5990-01-571-7468
NSN 6645-00-274-1279
NSN 6320-01-564-0893
NSN 6130-01-121-2385
NSN 2925-01-568-3705
NSN 5925-01-297-4194
NSN 6645-01-123-4443
NSN 5920-01-126-4741
NSN 4140-00-485-6139
NSN 6135-00-078-9931
NSN 5935-01-340-0661