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 5910-00-633-7743
NSN 6220-00-529-8415
NSN 5895-00-890-3526
NSN 7035-01-245-7973
NSN 6320-01-050-1290
NSN 6685-00-678-2948
NSN 2925-00-146-0179
NSN 6610-01-393-2388
NSN 6645-01-281-7254
NSN 6620-01-118-7588
NSN 6110-01-180-3154
NSN 5895-00-007-9847