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 5945-01-114-1288
NSN 5996-01-610-3406
NSN 5910-01-499-9678
NSN 6685-00-317-4319
NSN 5915-01-294-3694
NSN 5945-00-822-1773
NSN 6320-01-527-0211
NSN 6610-01-617-6495
NSN 6610-01-577-8685
NSN 5930-01-142-3325
NSN 6145-00-334-4115
NSN 5915-01-578-7264