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 5925-00-113-5066
NSN 4140-01-338-9555
NSN 5990-01-465-3088
NSN 5960-01-424-1781
NSN 6240-00-412-5584
NSN 5920-01-383-0300
NSN 5985-01-461-3423
NSN 5965-01-129-8551
NSN 4140-01-432-1447
NSN 5965-00-161-3954
NSN 6145-01-589-1981
NSN 5905-01-247-4640