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 6610-01-394-4944
NSN 6620-01-016-3091
NSN 5965-01-105-4194
NSN 6620-00-197-5130
NSN 6620-01-633-8443
NSN 6650-01-207-0829
NSN 5905-01-231-0070
NSN 5920-01-510-9921
NSN 6685-01-352-7241
NSN 6110-01-227-8597
NSN 5895-01-226-9308
NSN 5960-01-411-5899