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 5996-00-740-8315
NSN 5975-01-135-4453
NSN 6610-00-989-8912
NSN 5925-01-050-4265
NSN 6685-01-364-0661
NSN 5965-01-104-5102
NSN 6105-00-223-3719
NSN 6130-01-564-7663
NSN 5945-01-188-8148
NSN 6135-01-502-8771
NSN 6685-01-469-0052
NSN 5999-00-986-1892