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 6240-01-491-6118
NSN 6105-00-578-5353
NSN 5835-01-632-6627
NSN 5950-00-197-5794
NSN 5855-01-346-7682
NSN 6105-01-382-7702
NSN 6105-00-847-1397
NSN 6150-01-324-6356
NSN 5925-01-627-2764
NSN 6650-01-462-5879
NSN 2925-00-617-0826
NSN 6645-00-085-7603