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 5950-01-046-0778
NSN 6610-00-405-0513
NSN 6620-01-492-2600
NSN 2925-01-657-9741
NSN 6620-00-246-6448
NSN 5960-00-471-2026
NSN 6135-01-074-8220
NSN 5960-01-013-2587
NSN 2925-01-282-3206
NSN 5905-01-396-3241
NSN 6610-01-216-9542
NSN 6130-01-283-3413