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 6220-01-297-3218
NSN 6130-01-425-7517
NSN 6620-01-333-4734
NSN 6105-00-456-1433
NSN 6650-01-553-2805
NSN 5895-00-031-3591
NSN 6110-00-148-8536
NSN 6130-01-021-3078
NSN 6145-01-660-9072
NSN 5975-00-104-5018
NSN 5945-00-474-8958
NSN 5930-01-533-0009