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 5905-01-417-2066
NSN 6650-00-224-3223
NSN 2925-01-471-3365
NSN 6610-00-135-5815
NSN 5855-01-456-8667
NSN 6220-00-318-7755
NSN 5925-01-426-6923
NSN 6150-01-502-9106
NSN 5915-00-064-9096
NSN 6145-01-601-6660
NSN 5950-01-583-8433
NSN 6645-01-215-0617