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 6110-00-965-5447
NSN 5915-00-247-8770
NSN 4140-01-323-1259
NSN 5998-01-181-6357
NSN 5915-01-337-4592
NSN 4140-01-207-3577
NSN 6130-01-419-9072
NSN 5985-01-548-8911
NSN 5910-01-600-8747
NSN 5960-01-442-9304
NSN 6320-01-425-1417
NSN 5855-01-412-5147