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 6320-00-725-0754
NSN 5960-01-364-9795
NSN 5985-00-569-1845
NSN 6620-00-720-3278
NSN 5996-01-344-9741
NSN 6645-00-310-5839
NSN 5925-01-168-7812
NSN 5985-00-279-3412
NSN 5985-01-373-9857
NSN 6110-01-421-2714
NSN 6645-01-123-9277
NSN 5945-00-756-0455