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 6110-01-078-7382
NSN 6110-01-510-3300
NSN 5960-01-106-0460
NSN 6320-00-456-2092
NSN 6110-01-411-6660
NSN 5895-01-084-5386
NSN 5930-01-628-0416
NSN 5996-01-309-6002
NSN 5985-00-597-2966
NSN 5925-00-222-3843
NSN 2925-01-019-8735
NSN 5925-00-770-4068