The Elbow,pipe to Tube, cataloged under National Stock Number 4730-01-520-5474, 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 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-520-5474 |
| Item Name | Elbow,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | ASTM B633, TYPE II, SC1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | PLAIN BEVELED (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Leg Length | 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM SECOND END IN |
| Leg Length | 0.087 INCHES MINIMUM AND 0.092 INCHES MAXIMUM FIRST END IN |
| Nominal Thread Size | 0.437 INCHES FIRST END IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A FIRST END A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) FIRST 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 |
|---|---|
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| MS51815-3Z | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-520-5474 is a Elbow,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-520-5474: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: ASTM B633, TYPE II, SC1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Connection Style: PLAIN BEVELED (HOSE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END. 14 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.