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 6150-00-026-4216
NSN 5930-01-442-6453
NSN 6650-01-646-6909
NSN 5975-01-554-1859
NSN 5965-01-150-1920
NSN 5985-01-536-3739
NSN 5945-01-142-3321
NSN 5935-01-391-4980
NSN 5915-01-344-5611
NSN 5998-00-836-5602
NSN 6220-01-417-1847
NSN 5935-00-966-4920