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 6220-00-682-8292
NSN 6685-01-222-3456
NSN 5855-01-487-8872
NSN 5835-01-116-2369
NSN 5895-01-519-9167
NSN 5975-01-095-9878
NSN 6110-00-904-3328
NSN 5935-00-899-7901
NSN 6110-01-331-8300
NSN 5975-01-433-2527
NSN 6240-01-055-5193
NSN 5915-01-519-3287