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 5985-01-203-3419
NSN 5930-01-290-8488
NSN 6320-00-725-0754
NSN 5895-01-383-7982
NSN 6130-00-842-5721
NSN 2925-01-311-7840
NSN 5996-01-014-6103
NSN 5998-01-085-5671
NSN 6645-01-108-7904
NSN 5975-01-262-1593
NSN 5960-01-031-7992
NSN 6135-00-474-1397