The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-463-0257, 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 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-463-0257 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND SECOND END |
| Flange Shape | ROUND FIRST END |
| Furnished Items and Quantity | 1 SWIVEL NUT |
| Flow Angle | 45.0 DEGREES |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Inlet Location | HIGH HEEL SINGLE INLET |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Leg Length | 0.800 INCHES MINIMUM AND 0.830 INCHES MAXIMUM FIRST END IN |
| Leg Length | 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM SECOND END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Specification/standard Data | 96906-MS51528B GOVERNMENT STANDARD |
| Nominal Outside Diameter | 0.375 INCHES SECOND END IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A SECOND END A |
| Test Data Document | 96906-MS51528 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Material | STEEL OR STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| MS51528B6Z | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-463-0257 is a Elbow,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-463-0257: Flange Shape: ROUND SECOND END; Flange Shape: ROUND FIRST END; Furnished Items and Quantity: 1 SWIVEL NUT; Flow Angle: 45.0 DEGREES. 21 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.