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 5999-00-130-5322
NSN 5950-01-069-2571
NSN 5950-00-223-2910
NSN 6150-01-570-9749
NSN 5996-01-219-6675
NSN 6110-00-271-9928
NSN 2925-00-284-1534
NSN 5895-00-710-4564
NSN 6650-01-057-2377
NSN 6620-01-054-9346
NSN 6320-01-006-6138
NSN 6130-01-345-2177