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 5895-00-596-8678
NSN 5950-01-069-8777
NSN 5905-00-539-9706
NSN 7035-01-378-5074
NSN 5996-01-473-2183
NSN 6135-00-161-0746
NSN 4140-01-406-3292
NSN 7035-01-146-7096
NSN 5905-00-555-1899
NSN 6610-01-521-0213
NSN 6240-01-646-3061
NSN 5975-01-409-0564