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 5910-00-255-6228
NSN 6220-01-326-4032
NSN 5915-01-186-8081
NSN 6135-01-351-2690
NSN 5950-01-276-5723
NSN 5990-01-320-1412
NSN 5996-01-476-7550
NSN 5996-00-597-2234
NSN 5905-00-239-7585
NSN 6105-01-350-7927
NSN 7035-01-435-4009
NSN 5895-00-706-5419