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 6105-01-192-5392
NSN 2925-01-422-1542
NSN 6610-01-464-3037
NSN 6105-00-008-6140
NSN 6685-00-935-4250
NSN 5895-01-191-4415
NSN 5915-01-045-0724
NSN 6650-01-082-9046
NSN 5915-01-026-1460
NSN 5975-01-606-9052
NSN 5996-00-553-7348
NSN 5998-00-505-4303