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 6130-01-443-2448
NSN 5915-00-501-8579
NSN 6650-01-296-0883
NSN 5910-00-249-6409
NSN 6145-01-124-0035
NSN 4140-00-471-2789
NSN 7035-00-417-2967
NSN 5855-00-688-9954
NSN 5905-01-571-1870
NSN 5950-01-578-6669
NSN 6110-01-609-3479
NSN 6610-01-384-1587