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 5999-00-392-8462
NSN 6220-01-623-0649
NSN 5998-00-615-9251
NSN 5998-00-797-8009
NSN 5835-01-422-7393
NSN 5985-01-091-4509
NSN 6240-01-497-6865
NSN 6110-01-026-0312
NSN 6685-00-177-6491
NSN 5960-01-425-1454
NSN 5998-01-045-6359
NSN 5950-01-303-3455