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 6610-00-217-2194
NSN 6320-00-937-5625
NSN 5835-00-892-3510
NSN 7035-01-232-7263
NSN 5835-01-328-3566
NSN 5935-00-962-8947
NSN 6620-01-600-0479
NSN 5835-01-185-1102
NSN 5920-01-377-9518
NSN 6650-01-409-1992
NSN 5985-00-928-5764
NSN 5895-01-417-2666