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 5985-00-928-0210
NSN 5985-01-183-1559
NSN 6110-01-008-6654
NSN 6610-00-869-7702
NSN 6620-01-125-8904
NSN 6145-00-481-1954
NSN 5990-01-442-3520
NSN 5985-01-514-2130
NSN 5935-01-351-0523
NSN 5920-01-555-3597
NSN 6240-00-299-9819
NSN 5905-01-363-7378