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 6650-00-003-5413
NSN 6320-00-450-7014
NSN 7035-01-614-1776
NSN 6685-01-115-6534
NSN 5965-01-421-9593
NSN 6145-01-641-7703
NSN 5950-01-206-3529
NSN 6645-01-043-5236
NSN 5960-00-584-4553
NSN 5910-00-932-3229
NSN 5895-00-712-1895
NSN 5895-00-752-0549