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 5905-01-099-9496
NSN 2925-01-025-0082
NSN 6320-01-029-2196
NSN 5965-00-009-8679
NSN 5998-01-103-3415
NSN 5895-00-269-2697
NSN 6150-00-757-0761
NSN 5895-01-333-9834
NSN 5925-00-132-4305
NSN 5935-01-354-5345
NSN 6150-01-520-7375
NSN 7035-01-062-1692