The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-509-4726, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-509-4726 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LOCKNUT AND 1 UNION NUT AND 1 TAILPIECE AND 1 BACKUP WASHER AND 1 PREFORMED PACKING |
| Flow Angle | 90.0 DEGREES |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.250 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.0625 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.5625 INCHES SECOND END IN |
| Nominal Thread Size | 0.6875 INCHES FIRST END IN |
| Maximum Operating Temp | 275.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Maximum Operating Temp | -20.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 16 FIRST END |
| Thread Quantity Per Inch | 18 SECOND END |
| Material | TITANIUM BODY |
| Material | STEEL CORROSION RESISTING LOCK NUT |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNABLE TO DECODE |
| Thread Series Designator | UNF SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| H823-6-T2-LW-Z | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-509-4726 is a Elbow,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-509-4726: Furnished Items and Quantity: 1 LOCKNUT AND 1 UNION NUT AND 1 TAILPIECE AND 1 BACKUP WASHER AND 1 PREFORMED PACKING; Flow Angle: 90.0 DEGREES; Connection Style: PLAIN (TUBE) SECOND END; Connection Style: GASKET SEAL (TUBE) FIRST END. 23 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.