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 6240-00-104-4662
NSN 5960-00-338-9164
NSN 5855-01-266-1645
NSN 5990-00-389-0554
NSN 5855-00-494-9581
NSN 7035-01-211-5636
NSN 6620-01-617-3915
NSN 6135-01-255-9129
NSN 2925-00-400-2760
NSN 5920-00-644-3285
NSN 5960-01-439-9517
NSN 5950-01-336-0939