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 6240-00-357-0139
NSN 7035-01-431-9693
NSN 5950-00-244-0938
NSN 5950-00-584-4571
NSN 6220-01-217-8632
NSN 5915-01-534-2208
NSN 5965-01-625-4776
NSN 4140-00-087-4611
NSN 6150-01-088-5229
NSN 6145-01-590-7830
NSN 5998-01-480-0376
NSN 6320-00-223-0498