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 6240-01-183-5425
NSN 5945-01-110-3194
NSN 6145-01-400-3838
NSN 5960-01-541-5734
NSN 5835-01-283-8942
NSN 6240-01-468-5576
NSN 6645-00-964-3020
NSN 5960-01-399-4327
NSN 6130-00-302-3829
NSN 2925-01-575-7376
NSN 5985-01-116-0276
NSN 6130-01-520-8813