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 5965-01-508-1093
NSN 6650-01-207-0829
NSN 5985-01-514-8596
NSN 5950-01-418-7797
NSN 5998-01-481-3663
NSN 5905-00-365-9551
NSN 6130-01-455-4530
NSN 5965-01-510-1178
NSN 6685-01-065-5797
NSN 5935-00-540-5641
NSN 6130-01-435-6140
NSN 5996-01-528-3473