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 5935-00-451-4203
NSN 6650-01-159-7961
NSN 5945-01-435-7148
NSN 5905-01-408-4526
NSN 5915-01-411-9954
NSN 5996-01-056-9046
NSN 5998-01-412-1656
NSN 5945-01-225-5464
NSN 5945-01-439-0123
NSN 5996-01-608-7830
NSN 6110-01-633-9660
NSN 6135-01-066-6904