The Elbow,tube, cataloged under National Stock Number 4730-01-491-0557, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-491-0557 |
| Primary Part Number | MS51507B8Z |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Leg Length | 1.360 INCHES NOMINAL FIRST END BULKHEAD IN |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment | ZINC OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Thread Class | 2A ALL ENDS A |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Leg Length | 2.110 INCHES NOMINAL SECOND END IN |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS51507B8Z | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS51507B8Z | General Dynamics Land Systems Australia Pty Ltd 50 Mawson Lakes Boulevard (AUS) |
| MS51507 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 4730-01-491-0557 is a Elbow,tube, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-491-0557 has 3 cross-referenced part numbers: MS51507B8Z (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51507B8Z (General Dynamics Land Systems Australia Pty Ltd 50 Mawson Lakes Boulevard), MS51507 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).
There is 1 known substitute for 4730-01-491-0557: 4730-00-274-4601. Verify interchangeability with system specifications before substitution.
Key specifications for MS51507B8Z: Seat Angle: 37.0 DEGREES ALL ENDS; Leg Length: 1.360 INCHES NOMINAL FIRST END BULKHEAD IN; Nominal Thread Size: 0.750 INCHES ALL ENDS IN; Flow Angle: 90.0 DEGREES. 13 total characteristics are documented in the Federal Logistics Information System.