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 5950-01-325-0890
NSN 5920-00-710-2781
NSN 2925-01-255-3534
NSN 6685-01-502-9028
NSN 5895-01-168-0318
NSN 6645-01-461-3725
NSN 5835-01-457-7951
NSN 6220-01-388-2624
NSN 6685-01-326-9187
NSN 6105-00-061-8694
NSN 5965-01-217-7167
NSN 5950-00-832-6103