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 5905-00-504-7058
NSN 6240-01-393-5945
NSN 5945-01-226-8246
NSN 5975-01-338-1488
NSN 5935-01-071-1461
NSN 6220-00-343-0182
NSN 6145-01-316-3020
NSN 5935-01-007-2791
NSN 5985-01-415-3134
NSN 5950-01-094-7984
NSN 6220-01-302-5249
NSN 6145-01-032-4557