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 5985-01-529-8010
NSN 5950-00-541-8789
NSN 6150-01-555-8299
NSN 5950-01-115-9387
NSN 6110-01-362-1348
NSN 5915-01-519-6675
NSN 6220-01-246-6466
NSN 6130-01-188-0330
NSN 6650-01-525-0958
NSN 5965-00-247-4886
NSN 6220-01-038-1404
NSN 6610-01-132-6660