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 5855-01-398-9548
NSN 6610-00-989-8912
NSN 6145-01-571-6875
NSN 5920-00-189-0858
NSN 6145-01-460-2169
NSN 6135-01-633-8502
NSN 6150-01-547-2486
NSN 6320-00-925-0558
NSN 5855-01-286-9928
NSN 6240-00-176-5965
NSN 7035-01-121-5905
NSN 5960-01-413-3877