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 5935-00-598-6126
NSN 5935-01-337-8552
NSN 6220-00-490-6092
NSN 5999-00-523-1940
NSN 6620-01-110-2366
NSN 2925-01-109-1518
NSN 5960-01-599-9821
NSN 6620-01-471-4360
NSN 6320-00-036-3688
NSN 6105-00-349-9743
NSN 5985-01-330-8809
NSN 6645-01-085-2885