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 5905-01-286-9644
NSN 5960-00-504-6757
NSN 5996-01-024-2930
NSN 6610-01-522-9882
NSN 5990-01-317-9297
NSN 6110-01-368-3483
NSN 5950-00-889-8845
NSN 6130-01-443-5088
NSN 5960-01-087-8687
NSN 2925-01-624-5647
NSN 5998-01-282-2018
NSN 5975-01-417-3522