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 5895-00-987-6576
NSN 6650-00-665-3658
NSN 6645-00-417-1998
NSN 5910-00-208-4889
NSN 5998-01-643-2402
NSN 6110-01-232-7780
NSN 5935-01-333-9579
NSN 5985-01-024-6587
NSN 5920-01-218-5742
NSN 6620-01-442-8444
NSN 5996-01-406-6647
NSN 5960-00-986-5060