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 2925-01-354-1752
NSN 6685-00-287-7564
NSN 5985-01-204-7382
NSN 7035-01-227-2546
NSN 5965-01-482-9711
NSN 5960-01-462-1864
NSN 2925-00-869-1451
NSN 5945-01-613-5159
NSN 5996-00-141-3945
NSN 5895-01-623-6738
NSN 5945-01-225-0663
NSN 6320-01-362-9518