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 7035-01-625-9967
NSN 5935-00-148-1265
NSN 6220-01-241-4625
NSN 6610-00-809-4305
NSN 5930-01-074-1187
NSN 5895-00-890-6068
NSN 5895-01-472-2121
NSN 6620-01-231-9731
NSN 5996-01-652-8633
NSN 5910-01-391-6580
NSN 5895-01-101-8921
NSN 5925-01-065-4091