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 5895-01-445-0326
NSN 6110-01-013-8521
NSN 5835-01-242-9806
NSN 5920-01-612-6001
NSN 5930-01-134-7456
NSN 6110-01-511-4012
NSN 5925-00-853-6198
NSN 5975-00-768-8910
NSN 5950-01-133-3811
NSN 6650-00-912-4229
NSN 6145-00-657-4755
NSN 5925-00-660-7589