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 6685-00-762-8027
NSN 6105-00-021-2965
NSN 5895-01-035-8498
NSN 5990-01-439-4643
NSN 6685-00-533-5971
NSN 5895-01-391-5068
NSN 6650-01-164-0191
NSN 5965-00-372-2537
NSN 6150-01-114-7647
NSN 5950-01-318-8751
NSN 6685-01-308-1996
NSN 2925-00-105-3907