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 5996-00-065-3400
NSN 6105-00-654-0285
NSN 6150-01-475-8481
NSN 5905-01-052-1174
NSN 6135-01-556-3352
NSN 6240-01-417-0808
NSN 6135-01-167-7604
NSN 5965-01-393-5833
NSN 6145-01-012-9912
NSN 6130-00-861-2033
NSN 6685-00-110-8030
NSN 5835-01-100-3265