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 6610-00-305-5447
NSN 6145-01-320-2423
NSN 5990-01-073-2275
NSN 7035-00-497-8784
NSN 5915-01-444-2085
NSN 5945-01-104-8433
NSN 5999-01-347-5555
NSN 7035-01-474-0244
NSN 5910-01-441-9741
NSN 5965-00-578-8931
NSN 5996-00-153-9055
NSN 5895-01-500-5567