Model: MS21916-5-4
Boss ReducerProperties:
A straight fitting having a boss connection of a different size at each end. Both connections have external or internal machine threads (straight threads other than pipe or hose series) and are designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. Excludes bushing (as modified).
Part MS21916-5-4 NSN 4730-00-683-8872
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 7307994000
- SITC: 67959
- End Use: Iron and steel products, other
- NAICS: 332919
- USDA: 1
Freight Class: Other fittings nesoi of alloy steel not stainless
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