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 5925-01-547-4304
NSN 2925-01-357-2512
NSN 6105-01-490-3605
NSN 5996-01-487-8782
NSN 6220-01-054-2804
NSN 5975-01-518-6590
NSN 6685-01-213-2120
NSN 5998-00-598-5358
NSN 6685-01-414-5516
NSN 5905-01-224-9629
NSN 5930-01-267-3974
NSN 6110-00-260-0130