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 5910-01-027-4297
NSN 5990-01-337-9859
NSN 6685-00-647-3883
NSN 5925-01-317-2483
NSN 6150-00-146-8714
NSN 4140-01-443-9164
NSN 6130-00-132-3267
NSN 5965-00-953-0072
NSN 5925-01-077-6316
NSN 6110-01-445-6967
NSN 5925-01-208-7687
NSN 5945-01-341-6783