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 6620-00-948-6751
NSN 6320-01-372-8671
NSN 6320-00-036-3688
NSN 5996-01-033-1300
NSN 5945-01-407-3716
NSN 6145-00-127-9767
NSN 7035-01-116-6223
NSN 5996-00-153-3216
NSN 5920-01-327-2574
NSN 5925-00-118-8059
NSN 5910-01-280-6429
NSN 5950-01-174-8675