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 6110-01-210-8998
NSN 6650-01-598-4548
NSN 6135-01-168-2944
NSN 6145-01-463-9683
NSN 6110-01-415-3343
NSN 6130-01-134-4853
NSN 6110-00-068-8700
NSN 6610-01-431-8575
NSN 6110-01-213-4973
NSN 5950-01-373-8265
NSN 5960-01-306-4606
NSN 5999-01-391-7475