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 6105-00-253-5520
NSN 5935-01-382-0917
NSN 6240-01-474-1133
NSN 6610-01-341-1598
NSN 5930-01-463-8962
NSN 6685-00-838-1289
NSN 6110-01-633-9660
NSN 5835-01-432-1277
NSN 5985-01-549-7711
NSN 5965-01-367-7380
NSN 5999-01-010-9809
NSN 4140-01-207-0452