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 5895-01-461-3723
NSN 5985-00-341-6249
NSN 6220-01-409-1585
NSN 5855-01-472-8320
NSN 6110-01-252-1322
NSN 5905-01-200-0825
NSN 6645-01-383-0106
NSN 6110-01-355-4536
NSN 6620-01-247-1816
NSN 5998-01-544-0897
NSN 6685-00-412-5864
NSN 6610-01-339-1595