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 5915-00-186-0463
NSN 5935-01-403-2614
NSN 6610-01-033-1748
NSN 5895-00-981-9838
NSN 5965-00-168-4311
NSN 5965-01-099-8745
NSN 4140-01-520-6395
NSN 2925-01-097-0903
NSN 6135-01-613-1464
NSN 5835-01-552-8365
NSN 5945-01-024-4422
NSN 6110-01-190-3385