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 5950-01-047-0884
NSN 5999-01-476-7668
NSN 5950-00-850-2059
NSN 6610-01-573-1106
NSN 5996-01-621-5041
NSN 5985-01-099-4755
NSN 5835-00-315-3797
NSN 5996-01-198-0117
NSN 5960-01-265-0354
NSN 5960-00-354-3364
NSN 5905-01-643-1906
NSN 6110-01-020-8153