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 5925-00-113-5066
NSN 6220-01-416-0647
NSN 6110-00-188-9874
NSN 5945-01-555-8373
NSN 6240-01-487-6459
NSN 6220-01-499-6841
NSN 6320-01-495-6893
NSN 5935-01-066-0707
NSN 6110-01-544-3949
NSN 5895-01-320-4458
NSN 5905-01-315-1892
NSN 5985-00-163-3575