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 5905-01-025-4320
NSN 5910-00-513-9782
NSN 5910-01-221-2314
NSN 6320-00-925-0558
NSN 5998-01-415-4815
NSN 5930-01-471-5657
NSN 5895-01-223-3261
NSN 6130-01-057-2610
NSN 5935-01-038-9647
NSN 4140-01-432-8771
NSN 5975-00-411-6294
NSN 5985-01-027-0718