NSN 4730-00-640-5042
Part Details | BOSS REDUCER
4730-00-640-5042 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).
Alternate Parts: ER919D128, ER919D12-8, MS21916D128, MS21916D12-8, MS21916D128, MS21916D12-8, AS21916, 4730-00-640-5042, 00-640-5042, 4730006405042, 006405042
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 47 | JAN 01, 1961 | 00-640-5042 | 23541 ( REDUCER, BOSS ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4730-00-640-5042
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| ER919D12-8 | 79470 | DANA CORPWEATHERHEAD DIV |
| MS21916D12-8 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
| MS21916D12-8 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| AS21916 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
Technical Data | NSN 4730-00-640-5042
| Characteristic | Specifications |
|---|---|
| NOMINAL OVERALL LENGTH | 1.625 INCHES |
| REDUCER TYPE | CONCENTRIC |
| SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL |
| SPECIFICATION/STANDARD DATA | 96906-MS21916 GOVERNMENT STANDARD |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| END ITEM IDENTIFICATION | USED ON BOEING VERTOL CARGO TRANSPORT HELICOPTER, MODEL CH-47 (CHINOOK) |