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 5905-00-050-3885
NSN 5945-00-444-6514
NSN 5915-01-535-1628
NSN 6620-00-286-5721
NSN 5985-01-119-7401
NSN 6110-01-433-7044
NSN 6650-01-437-6254
NSN 5996-00-035-5624
NSN 6130-00-325-5811
NSN 6240-01-329-7228
NSN 5905-01-106-0669
NSN 6110-00-844-6230