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 6685-01-535-6466
NSN 4140-01-296-3365
NSN 6645-00-051-6673
NSN 6685-01-284-6525
NSN 5990-01-288-7393
NSN 5990-00-125-4100
NSN 6320-01-462-3555
NSN 5835-00-446-2944
NSN 6610-00-670-7801
NSN 4140-01-299-9601
NSN 6130-00-727-3294
NSN 5999-01-356-5489