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 5985-00-962-1790
NSN 5835-01-555-8963
NSN 6645-01-165-3785
NSN 5925-01-292-4650
NSN 5950-01-018-0891
NSN 5965-00-147-3070
NSN 5945-00-923-2720
NSN 5895-00-908-9190
NSN 5996-01-328-1615
NSN 5920-00-964-4538
NSN 6620-01-603-0852
NSN 5960-00-521-9719