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 6105-01-031-9638
NSN 6130-00-316-3219
NSN 5975-01-371-1609
NSN 5998-01-340-3682
NSN 5905-00-108-8618
NSN 4140-01-279-4311
NSN 6110-01-185-9130
NSN 7035-01-475-5116
NSN 6110-00-021-6696
NSN 5935-00-143-1399
NSN 5935-00-655-1423
NSN 6320-01-495-0512