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 6110-01-549-1882
NSN 6685-01-144-1425
NSN 5925-01-579-3744
NSN 6620-00-299-2530
NSN 5925-00-081-9135
NSN 6110-01-163-5081
NSN 5999-00-824-2827
NSN 6220-00-009-6099
NSN 5915-00-847-7890
NSN 6220-00-940-0625
NSN 6130-01-496-4669
NSN 5999-01-300-7918