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 5998-00-766-7068
NSN 6135-01-036-3495
NSN 5950-00-707-6107
NSN 5945-01-595-0815
NSN 6645-01-633-1852
NSN 6220-01-119-0742
NSN 5996-00-428-8130
NSN 5930-01-354-8119
NSN 5945-01-120-9120
NSN 5915-00-813-5158
NSN 5998-00-230-4811
NSN 5935-01-465-6618