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 5895-01-072-9697
NSN 5960-01-522-0391
NSN 6110-01-195-2157
NSN 5996-00-325-6285
NSN 6240-00-792-5469
NSN 5965-00-226-0209
NSN 7035-01-434-6134
NSN 5915-01-315-8224
NSN 5905-01-319-4805
NSN 6110-00-975-9927
NSN 6320-00-519-0770
NSN 5960-01-278-9394