Two inner grooves 0.025in. From each edge
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 5910-01-207-6981
NSN 6105-01-497-5132
NSN 6150-00-133-2552
NSN 6150-00-497-6927
NSN 4140-01-541-9772
NSN 5915-00-220-9912
NSN 6610-00-758-3486
NSN 6130-01-645-7766
NSN 6320-01-659-2819
NSN 6105-00-525-1586
NSN 6645-01-076-4655
NSN 5920-01-272-8902