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 6110-01-058-2112
NSN 5999-01-161-3557
NSN 6685-01-504-3445
NSN 5935-00-529-0319
NSN 6685-01-188-7379
NSN 5950-01-411-3096
NSN 6650-01-345-9796
NSN 5996-01-429-8967
NSN 5985-00-451-6501
NSN 5945-01-607-0431
NSN 6220-01-085-4947
NSN 5930-00-170-7146