The Elbow,flange to Tube, cataloged under National Stock Number 4730-01-137-3315, 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 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-137-3315 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Nominal Length | 2.250 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.468 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.380 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.850 INCHES NOMINAL SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.500 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 2.250 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.500 INCHES SECOND END IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Raised Face Nominal Diameter | 1.186 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.063 INCHES SECOND END IN |
| Nominal Thickness | 0.315 INCHES SECOND END IN |
| 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 |
|---|---|
| 2621-166-03ASS187 | 3/2 Design control — primary reference U.S. Government activity |
| 845 4687601 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-137-3315 is a Elbow,flange to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-137-3315: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Flow Angle: 90.0 DEGREES; Flange Face Design: RAISED STRAIGHT SECOND END; Connection Style: SOCKET (TUBE) FIRST END. 20 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.