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 5905-00-434-9680
NSN 5950-01-338-3440
NSN 6110-01-012-3534
NSN 5996-01-632-4144
NSN 7035-01-504-6048
NSN 5975-01-463-7285
NSN 6240-00-646-6931
NSN 2925-00-246-3077
NSN 4140-01-181-3213
NSN 5950-01-377-5006
NSN 6610-01-244-7192
NSN 5895-00-186-0717