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 5999-01-246-9892
NSN 5950-00-394-1546
NSN 6650-00-702-3560
NSN 5935-01-526-9625
NSN 5910-01-508-5312
NSN 6130-00-539-9964
NSN 5945-01-028-6989
NSN 6150-00-257-5027
NSN 6650-01-243-1626
NSN 6130-00-361-7114
NSN 6150-00-554-7591
NSN 7035-01-340-3272