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 5915-00-771-1645
NSN 6610-00-667-6832
NSN 6650-01-068-9248
NSN 5895-00-370-8115
NSN 5930-01-371-2910
NSN 6620-01-281-6386
NSN 6650-00-221-7119
NSN 5965-01-313-6569
NSN 5895-00-726-4831
NSN 7035-01-315-9754
NSN 6240-01-464-4571
NSN 6145-01-093-5259