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 5895-00-926-8714
NSN 5895-01-116-1692
NSN 5925-00-196-6978
NSN 6130-00-557-1583
NSN 5920-01-554-9804
NSN 5925-00-216-8767
NSN 6110-00-596-9124
NSN 6105-01-595-6209
NSN 5915-00-588-9669
NSN 5920-01-525-9708
NSN 6220-01-634-0660
NSN 6135-01-347-0201