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 5905-01-084-7264
NSN 6150-01-221-7845
NSN 6645-00-736-0476
NSN 5990-01-595-9441
NSN 5990-00-277-3763
NSN 5950-00-739-3496
NSN 5975-01-437-9784
NSN 6620-01-345-1336
NSN 5935-00-773-3316
NSN 5999-01-296-5184
NSN 5925-01-113-8272
NSN 5915-01-563-1323