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 6685-01-265-3754
NSN 6620-01-207-0667
NSN 5935-01-205-3700
NSN 5930-00-951-9732
NSN 6135-00-351-8606
NSN 6685-01-571-3452
NSN 4140-01-017-1269
NSN 5996-01-107-4136
NSN 6610-01-646-1609
NSN 6650-01-354-3363
NSN 7035-00-003-7518
NSN 6610-01-013-3423