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 6110-01-045-7482
NSN 6320-00-343-1798
NSN 6650-01-390-6989
NSN 6650-01-399-8552
NSN 5985-00-762-9931
NSN 5930-01-091-1875
NSN 5996-00-397-4318
NSN 5925-01-362-5494
NSN 5950-01-204-1335
NSN 6105-01-328-3992
NSN 6220-01-085-4789
NSN 5985-00-577-0876