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 6130-00-359-2747
NSN 5935-01-407-0608
NSN 6320-01-462-3555
NSN 5950-01-213-8441
NSN 6685-01-031-3009
NSN 5960-00-866-5465
NSN 5905-01-058-4900
NSN 6610-01-633-8931
NSN 6650-01-441-1258
NSN 6645-01-094-8917
NSN 5996-00-222-4930
NSN 5935-01-442-6139