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 5985-01-014-0360
NSN 6620-01-546-4942
NSN 5945-01-428-4033
NSN 5950-01-102-5177
NSN 6610-00-027-1284
NSN 6105-01-555-8479
NSN 5990-01-336-3976
NSN 5985-00-022-8599
NSN 6650-01-118-8140
NSN 5835-01-519-3834
NSN 5985-01-145-4673
NSN 6685-00-951-8492