Mil-std-417a gr sb725f1
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 5905-00-725-0673
NSN 5999-01-476-8123
NSN 6645-00-226-0657
NSN 6145-01-436-8989
NSN 7035-01-325-7658
NSN 5999-00-518-1007
NSN 5945-01-200-6316
NSN 5895-01-013-9320
NSN 6240-01-461-8193
NSN 5965-01-575-6067
NSN 5935-01-089-7125
NSN 6320-00-779-5923