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 5950-01-423-9397
NSN 6645-01-189-6942
NSN 5996-01-471-5986
NSN 6650-01-571-7122
NSN 5996-01-633-2867
NSN 6105-01-515-8624
NSN 5985-01-513-7762
NSN 5999-01-112-1015
NSN 2925-01-254-3068
NSN 6610-00-063-8489
NSN 5915-01-390-8296
NSN 6320-01-476-7702