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 6145-01-483-0407
NSN 5895-01-364-9122
NSN 6110-00-564-6464
NSN 6135-01-167-0759
NSN 6150-01-337-6433
NSN 5965-01-253-0451
NSN 5920-01-461-2810
NSN 5935-01-212-3883
NSN 5915-01-633-9845
NSN 4140-00-983-8048
NSN 6320-01-549-7201
NSN 6130-01-520-9209