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 5996-01-266-8706
NSN 5950-01-507-0384
NSN 5950-00-707-6107
NSN 5895-01-503-0192
NSN 5930-01-369-0220
NSN 7035-01-145-5059
NSN 5905-01-142-2894
NSN 5945-01-328-1508
NSN 6110-01-274-0725
NSN 5925-01-200-7813
NSN 6320-01-631-7828
NSN 5930-00-707-5696