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 5895-00-088-1778
NSN 5905-01-352-5824
NSN 6685-01-569-6534
NSN 5835-00-001-5456
NSN 5895-00-081-2219
NSN 6610-01-633-8931
NSN 5935-00-982-6894
NSN 5945-01-556-2002
NSN 6150-01-551-1266
NSN 6130-01-184-7867
NSN 5998-00-034-7796
NSN 5925-01-575-5808