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 5905-00-536-1056
NSN 5895-01-158-8728
NSN 5855-01-331-8502
NSN 5996-01-246-0078
NSN 5945-01-617-9180
NSN 5835-01-155-0786
NSN 5990-01-591-8797
NSN 6610-01-320-5688
NSN 6620-01-164-0590
NSN 5999-01-257-1184
NSN 6645-00-570-8472
NSN 5945-01-239-8190