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 5996-00-902-0202
NSN 6685-01-259-6102
NSN 5905-01-434-9149
NSN 5999-01-486-7035
NSN 6645-01-236-3494
NSN 6220-01-075-1964
NSN 6645-01-082-6389
NSN 5920-01-573-0137
NSN 6610-01-418-0678
NSN 5935-01-468-5799
NSN 6145-01-173-5143
NSN 2925-01-368-5773