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 5915-01-051-3352
NSN 5950-01-279-4095
NSN 5930-01-286-2233
NSN 6110-00-126-8402
NSN 6145-01-475-5410
NSN 6645-00-605-5454
NSN 5950-00-007-3938
NSN 5960-01-157-7009
NSN 5905-00-218-1237
NSN 6620-00-382-8827
NSN 7035-01-169-6551
NSN 5975-01-568-3518