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 5985-01-371-7735
NSN 5996-00-067-8864
NSN 5915-01-083-7464
NSN 6130-01-594-7668
NSN 5996-01-511-2138
NSN 5985-00-581-6246
NSN 5855-01-147-6024
NSN 5950-01-476-8851
NSN 6130-01-422-0304
NSN 5895-01-305-5426
NSN 5965-01-443-3407
NSN 6105-00-983-5925