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 6320-00-925-0558
NSN 5965-01-169-1194
NSN 5996-00-851-4934
NSN 5975-00-111-6781
NSN 5985-01-122-4985
NSN 6320-01-411-7469
NSN 6105-00-168-6556
NSN 6620-01-591-1331
NSN 6610-01-391-6781
NSN 5950-01-535-0933
NSN 6130-01-617-1417
NSN 5895-01-553-7353