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 6645-00-679-8203
NSN 5996-01-425-1455
NSN 6135-01-009-4929
NSN 5985-01-395-8978
NSN 5990-00-137-2921
NSN 5915-01-170-4308
NSN 6320-01-512-2031
NSN 4140-01-530-0373
NSN 5930-01-329-4854
NSN 6110-01-400-4207
NSN 6105-01-105-5054
NSN 6130-00-241-0969