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 5835-01-625-8604
NSN 5996-01-337-6190
NSN 5910-01-123-9470
NSN 5950-00-916-7899
NSN 6105-01-205-5273
NSN 6685-01-155-1620
NSN 6645-01-539-2335
NSN 5895-01-031-3665
NSN 6320-01-267-5117
NSN 5975-01-284-1937
NSN 6650-00-168-1502
NSN 5985-01-597-0672