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 6110-00-232-5406
NSN 6620-00-280-2874
NSN 5915-00-858-3444
NSN 6135-00-050-7189
NSN 6685-00-914-5942
NSN 7035-01-086-8095
NSN 6130-00-222-6216
NSN 5945-01-014-0624
NSN 6220-00-444-6051
NSN 5996-00-938-1796
NSN 5895-00-019-0944
NSN 6145-00-471-3975