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 6145-00-444-3854
NSN 5930-00-107-7718
NSN 5835-01-540-4995
NSN 5985-01-247-1354
NSN 5925-00-864-6228
NSN 5905-01-012-3035
NSN 6135-01-397-2170
NSN 5915-01-077-2208
NSN 5905-01-645-4960
NSN 6220-01-500-0740
NSN 6150-01-352-9402
NSN 6110-00-239-9248