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 6685-01-445-7658
NSN 5965-01-096-7825
NSN 7035-01-650-5774
NSN 6645-01-408-6568
NSN 5998-00-618-4757
NSN 6220-00-565-7001
NSN 5945-01-044-8242
NSN 6610-00-348-2378
NSN 5920-01-390-1646
NSN 6110-01-400-4207
NSN 5935-00-756-3204
NSN 6685-01-077-1368