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 5855-01-076-9369
NSN 6650-01-193-5911
NSN 5895-00-411-1716
NSN 5990-01-097-4721
NSN 6240-01-194-2206
NSN 5996-00-280-8980
NSN 6610-00-515-6462
NSN 6130-01-355-6557
NSN 5920-00-990-9727
NSN 6620-01-411-4434
NSN 5925-00-960-0164
NSN 6650-01-024-9554