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 6610-01-242-9674
NSN 5975-01-535-0292
NSN 6105-00-320-9679
NSN 5985-01-189-1320
NSN 5998-01-483-2423
NSN 5915-01-113-7872
NSN 5999-00-785-6039
NSN 5925-01-022-9733
NSN 5985-01-222-0748
NSN 5925-01-242-1524
NSN 5935-01-557-2930
NSN 5990-00-632-7106