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 5930-01-384-9894
NSN 5996-01-577-9696
NSN 5985-01-430-2570
NSN 5996-01-329-5451
NSN 5930-01-485-2415
NSN 6685-01-457-9534
NSN 5965-01-492-9344
NSN 6320-01-185-3857
NSN 5945-00-482-2141
NSN 6110-01-268-6215
NSN 5895-00-024-7368
NSN 5950-01-328-4592