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 6645-01-265-0648
NSN 5965-00-387-6880
NSN 5835-00-471-2660
NSN 5930-01-138-1857
NSN 6130-01-310-7206
NSN 6620-01-196-7670
NSN 6135-01-444-6824
NSN 6240-01-474-5446
NSN 6610-01-084-6738
NSN 5925-00-821-4768
NSN 5925-00-496-5058
NSN 5996-00-240-3224