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 5998-00-472-9268
NSN 5998-01-157-8244
NSN 5895-01-399-1890
NSN 6685-01-591-7440
NSN 4140-00-541-9077
NSN 6685-01-382-1366
NSN 5950-00-082-7440
NSN 5925-01-085-8163
NSN 5998-01-583-8421
NSN 6610-01-457-1974
NSN 7035-01-660-3940
NSN 6645-00-147-9069