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 6135-01-141-4916
NSN 6320-00-116-3658
NSN 5985-00-023-9324
NSN 6610-01-464-3037
NSN 6110-01-295-8842
NSN 5999-00-205-0918
NSN 6130-01-004-8977
NSN 6110-01-111-2614
NSN 5895-01-288-6340
NSN 6240-01-169-1686
NSN 5975-01-374-8597
NSN 2925-01-437-9041