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 5905-01-476-3529
NSN 6105-01-099-9205
NSN 5960-01-010-1497
NSN 5835-00-891-2784
NSN 6135-01-562-3056
NSN 5999-01-383-6118
NSN 6150-00-033-6739
NSN 5855-01-304-3064
NSN 6220-01-396-4409
NSN 7035-01-155-0153
NSN 5895-00-904-6440
NSN 5905-00-435-9035