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 5855-00-079-2370
NSN 5935-00-453-8699
NSN 6105-01-048-0701
NSN 5925-00-768-0289
NSN 5835-00-491-3834
NSN 6610-00-349-7014
NSN 5935-00-294-3330
NSN 5945-00-513-0926
NSN 6240-01-327-4945
NSN 7035-00-585-2113
NSN 6645-01-076-9310
NSN 5915-00-617-9477