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 5950-01-298-3382
NSN 5895-00-436-2824
NSN 6320-00-521-9350
NSN 5895-01-197-7401
NSN 5925-01-519-0431
NSN 5925-00-449-3330
NSN 5915-01-476-8178
NSN 6240-01-608-4401
NSN 7035-01-063-8753
NSN 5998-00-425-3323
NSN 5895-01-488-7976
NSN 6320-01-642-0342