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 5996-00-059-7061
NSN 5999-01-112-7020
NSN 7035-01-580-5868
NSN 6320-00-538-2132
NSN 5996-00-972-9713
NSN 5935-01-088-8079
NSN 6650-01-090-0719
NSN 5975-01-184-5831
NSN 6645-01-338-1423
NSN 5975-00-275-7985
NSN 5835-01-294-9691
NSN 6145-01-100-4151