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 5998-01-576-3420
NSN 7035-01-574-6324
NSN 5965-01-591-3958
NSN 5999-01-027-1252
NSN 5835-01-442-6482
NSN 6145-01-441-9541
NSN 6105-01-045-3973
NSN 5990-00-404-9567
NSN 5925-01-494-1050
NSN 5950-01-224-7226
NSN 5985-01-408-6244
NSN 5895-00-950-1362