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 5996-01-514-8118
NSN 6110-00-958-3794
NSN 2925-01-146-0278
NSN 5985-00-439-0548
NSN 6105-01-294-3986
NSN 7035-00-421-8710
NSN 5950-00-510-9943
NSN 5935-01-171-8512
NSN 5935-01-418-5354
NSN 5950-00-935-2343
NSN 6105-00-422-4098
NSN 5910-01-030-1584