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 6145-00-006-4954
NSN 5895-01-282-7125
NSN 5999-01-328-2958
NSN 5855-00-560-0110
NSN 5975-01-006-6037
NSN 5998-00-001-3711
NSN 5950-00-175-8175
NSN 5905-00-972-9860
NSN 6610-01-038-7486
NSN 6645-01-595-4323
NSN 6320-01-476-7702
NSN 5945-01-465-2044