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 5935-00-827-6487
NSN 6320-01-232-4664
NSN 5945-01-136-5359
NSN 5998-01-278-1529
NSN 5935-01-035-8821
NSN 5925-00-400-9026
NSN 6320-01-504-3948
NSN 6320-00-098-2858
NSN 5965-00-252-4333
NSN 5895-01-075-6497
NSN 5999-01-296-7109
NSN 5910-01-306-2795