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 6105-01-123-8887
NSN 2925-01-212-1040
NSN 2925-00-081-3547
NSN 5895-01-278-9379
NSN 5965-00-888-2643
NSN 5835-01-182-1966
NSN 6645-01-076-9310
NSN 2925-01-254-3068
NSN 4140-01-087-3336
NSN 6320-01-082-2970
NSN 7035-01-547-3531
NSN 6135-01-286-9563