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 6110-01-461-7452
NSN 5996-01-396-3085
NSN 6240-00-107-1518
NSN 5996-01-096-4115
NSN 6650-01-600-1557
NSN 6220-01-501-7907
NSN 5960-00-420-0418
NSN 5950-01-473-9352
NSN 4140-01-085-4965
NSN 6110-01-174-0086
NSN 5930-01-259-6423
NSN 5996-00-525-1777