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 2925-00-146-0179
NSN 5950-01-214-8399
NSN 6610-00-448-0341
NSN 7035-01-106-9776
NSN 6620-01-193-7774
NSN 2925-00-225-5386
NSN 5996-00-187-1424
NSN 5985-00-247-6308
NSN 6320-00-790-4844
NSN 6320-01-371-3047
NSN 6130-00-242-9487
NSN 5935-01-320-2545