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 5996-00-065-8376
NSN 6220-01-050-0835
NSN 5895-01-456-1702
NSN 6130-00-683-1011
NSN 5950-00-410-9287
NSN 6110-00-155-4303
NSN 6645-01-365-1511
NSN 5920-00-133-4276
NSN 5915-01-511-8384
NSN 5920-01-043-4848
NSN 5925-01-401-5314
NSN 5996-00-026-9118