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 5950-00-490-5798
NSN 5925-01-448-6071
NSN 5945-01-533-4780
NSN 5996-01-427-8435
NSN 5960-01-328-8248
NSN 6645-00-235-4685
NSN 5975-01-193-6739
NSN 5895-01-579-3592
NSN 6320-01-280-5091
NSN 6135-01-445-6589
NSN 2925-01-487-0886
NSN 5915-01-203-3283