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 5935-00-738-1553
NSN 5915-01-515-3092
NSN 5925-00-074-9180
NSN 5935-01-415-4467
NSN 5996-00-153-3216
NSN 6240-00-456-2578
NSN 5925-01-221-6426
NSN 5990-00-826-7928
NSN 6620-01-327-3011
NSN 6130-01-020-0582
NSN 5960-01-439-9517
NSN 5935-00-679-2406