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 5905-00-051-7597
NSN 6620-00-872-5032
NSN 5945-00-962-2814
NSN 5998-01-514-2816
NSN 5950-01-364-0006
NSN 7035-01-026-1171
NSN 5945-00-542-9690
NSN 5965-01-359-5501
NSN 5965-00-964-1756
NSN 6220-00-960-5621
NSN 6220-00-252-0702
NSN 5985-00-158-5316