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 5999-00-803-2530
NSN 5985-00-339-2318
NSN 5915-01-474-6105
NSN 5990-01-623-0082
NSN 5935-00-126-5937
NSN 5945-01-185-6596
NSN 5998-00-188-7930
NSN 5945-00-060-8107
NSN 5960-01-224-8022
NSN 5965-01-135-3679
NSN 7035-01-033-3007
NSN 5895-01-200-8841