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 5998-01-088-3199
NSN 5905-00-376-5220
NSN 5950-01-334-0865
NSN 6610-01-069-1156
NSN 6220-00-357-9534
NSN 5935-01-346-6845
NSN 5855-01-163-8152
NSN 5930-01-178-4403
NSN 5855-01-328-7434
NSN 5965-00-523-1787
NSN 6685-00-599-8407
NSN 7035-01-215-7764