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 5950-01-054-9798
NSN 6130-01-366-7481
NSN 6135-01-377-5729
NSN 2925-01-244-3016
NSN 7035-01-211-5636
NSN 6320-01-578-6006
NSN 5960-01-021-0659
NSN 5945-01-419-9870
NSN 6685-00-339-8822
NSN 2925-01-577-7786
NSN 5855-01-085-5354
NSN 6685-01-388-1377