The Elbow,tube, cataloged under National Stock Number 4730-01-071-7318, 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 30 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-071-7318 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 FED SPEC 3RD TREATMENT RESPONSE SLEEVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC 2ND TREATMENT RESPONSE NUT |
| Connection Style | PLAIN (TUBE) INLET |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | DOUBLE COMPRESSION (TUBE) FIRST END |
| Seat Nominal Radius | 0.0275 INCHES FIRST END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.035 INCHES SECOND END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.035 INCHES INLET IN |
| Inlet Location | HIGH HEEL SINGLE INLET |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED EXTERNAL TUBE INLET |
| Material Document and Classification | QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE NUT |
| Material Document and Classification | QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE SLEEVE |
| Material Document and Classification | WW-T-700/4-0,TYPE 1 FED SPEC 1ST MATERIAL RESPONSE ELBOW |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES INLET IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 4.500 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.900 INCHES NOMINAL INLET IN |
| Leg Length | 2.350 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | CADMIUM NUT |
| Surface Treatment | CADMIUM SLEEVE |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Thread Class | 3B FIRST END |
| Material | ALUMINUM ALLOY 5052 ELBOW |
| 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 |
|---|---|
| 14-57214-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 14-57214-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 4730-01-071-7318 is a Elbow,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-071-7318: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: QQ-P-416,TYPE 2 FED SPEC 3RD TREATMENT RESPONSE SLEEVE; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC 2ND TREATMENT RESPONSE NUT; Connection Style: PLAIN (TUBE) INLET. 30 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.