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 6110-01-091-9703
NSN 6135-01-074-8220
NSN 6220-01-499-7194
NSN 5915-01-048-5420
NSN 6645-01-460-8561
NSN 6320-00-731-6134
NSN 5905-00-795-8357
NSN 5960-01-270-6362
NSN 6240-01-364-0815
NSN 5990-01-097-4721
NSN 5950-01-324-9574
NSN 6220-01-380-1211