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 6110-01-526-4396
NSN 6105-00-900-4143
NSN 5910-00-881-3107
NSN 6320-01-301-4699
NSN 6610-01-184-3016
NSN 6645-01-235-9465
NSN 5895-01-653-4682
NSN 5905-00-994-1482
NSN 5950-01-530-0538
NSN 6645-01-407-6448
NSN 5920-01-485-3280
NSN 6220-01-565-0971