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 7035-01-530-6707
NSN 5999-01-411-5135
NSN 5975-00-284-3319
NSN 6135-01-265-1384
NSN 6145-01-375-7565
NSN 5855-01-286-9928
NSN 6130-00-407-8109
NSN 6135-01-607-5478
NSN 6645-01-148-3613
NSN 5905-01-590-7690
NSN 6320-01-319-3584
NSN 5998-01-171-9323