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 5950-01-574-3784
NSN 5915-00-783-4480
NSN 5855-01-602-9218
NSN 5999-00-560-2227
NSN 6130-01-361-9268
NSN 6650-01-123-1091
NSN 6105-01-578-6318
NSN 5895-01-570-7220
NSN 6220-01-582-8552
NSN 5996-01-301-3267
NSN 5910-01-098-7574
NSN 6130-00-956-3307