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 5945-01-341-5117
NSN 5990-01-193-0487
NSN 5945-01-338-4916
NSN 5930-01-178-1602
NSN 7035-01-269-5700
NSN 5895-00-648-0382
NSN 6650-01-329-8020
NSN 6320-00-270-8222
NSN 6150-01-442-4931
NSN 6650-01-068-3997
NSN 5998-00-836-9264
NSN 5895-01-136-5979