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 5985-01-265-1100
NSN 6105-01-517-2448
NSN 5835-01-391-4556
NSN 6240-01-063-7685
NSN 5998-01-435-6656
NSN 7035-01-271-1643
NSN 7035-01-435-4009
NSN 5895-01-445-8373
NSN 5905-00-979-9133
NSN 5905-01-407-4594
NSN 6320-00-322-3460
NSN 4140-01-603-9386