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 6110-01-294-7089
NSN 5935-01-257-4026
NSN 5975-00-657-1544
NSN 6110-00-588-2440
NSN 5915-01-049-8403
NSN 5920-00-345-5833
NSN 5950-01-373-1723
NSN 6610-01-322-1394
NSN 6240-01-415-5581
NSN 6645-00-474-5689
NSN 6240-01-643-3523
NSN 5855-00-631-4565