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 5935-01-289-5876
NSN 6240-00-612-0883
NSN 6685-01-210-0112
NSN 4140-01-495-2216
NSN 6105-00-090-3243
NSN 6685-00-276-9889
NSN 5950-01-160-1042
NSN 5950-00-239-1485
NSN 4140-01-516-8995
NSN 5920-00-318-7150
NSN 6645-01-241-4300
NSN 5895-00-158-4343