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 6240-01-625-0605
NSN 6130-01-382-9623
NSN 5895-01-191-0167
NSN 5915-01-499-1321
NSN 5915-00-246-8650
NSN 6130-01-125-2567
NSN 7035-01-518-9610
NSN 6620-01-009-8809
NSN 2925-01-243-7736
NSN 5915-01-215-1473
NSN 6620-01-474-4951
NSN 5975-01-391-5306