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 5895-00-795-0522
NSN 6320-00-931-4855
NSN 6320-01-550-3420
NSN 5999-01-579-2804
NSN 5855-01-342-3824
NSN 5996-01-327-5071
NSN 6110-00-146-2114
NSN 6110-01-416-5602
NSN 5960-01-624-1170
NSN 5935-01-441-9301
NSN 5835-00-315-3797
NSN 6620-00-774-3638