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 5855-01-372-4433
NSN 6130-01-211-9919
NSN 5920-01-332-8992
NSN 6220-01-087-0816
NSN 2925-00-555-4578
NSN 6135-01-230-4399
NSN 6240-01-408-1212
NSN 5925-01-317-2483
NSN 5835-01-481-4204
NSN 5960-01-493-3948
NSN 5985-01-055-6688
NSN 6130-00-218-1363