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 5996-01-165-6097
NSN 6150-01-603-3413
NSN 5950-01-330-7693
NSN 6650-01-191-1669
NSN 6685-01-361-5195
NSN 6135-01-307-6006
NSN 6110-01-633-9660
NSN 6610-00-216-6538
NSN 6240-01-371-8637
NSN 6320-01-481-7322
NSN 5835-01-422-2399
NSN 5855-00-235-2676