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 5965-00-246-5612
NSN 6610-01-611-8122
NSN 6220-01-134-1005
NSN 5990-01-510-4699
NSN 6650-00-854-0265
NSN 4140-00-773-6474
NSN 5999-01-142-4749
NSN 5945-00-993-2385
NSN 5935-01-035-5157
NSN 2925-01-554-5246
NSN 6105-01-452-9378
NSN 6145-00-135-1436