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 6110-01-320-8483
NSN 5985-01-415-5785
NSN 6110-01-059-0617
NSN 5925-01-600-2173
NSN 6645-01-598-3976
NSN 2925-01-288-2091
NSN 6240-00-946-2173
NSN 5895-01-634-0630
NSN 6645-01-611-5068
NSN 6685-00-150-0311
NSN 6105-01-651-5330
NSN 5910-01-370-4401