The Elbow,flange to Tube, cataloged under National Stock Number 4730-01-451-3646, 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 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-451-3646 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SETSCREW AND 1 PREFORMED PACKING AND 1 BRAZING RING |
| Flow Angle | 90.0 DEGREES |
| Connection Style | REDUCED SOCKET W/ ONE BRAZING RING (TUBE) FIRST END |
| Tubing Wall Nominal Thickness for Which Designed | 0.200 INCHES FIRST END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | NICKEL ALLOY FLANGE |
| Material | STEEL COMP 316 SLEEVE |
| 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 |
|---|---|
| 2621-166-01 | D/9 Drawing number reference only U.S. Government activity |
| 2621-166-01 ASSY 49 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-451-3646 is a Elbow,flange to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-451-3646: Furnished Items and Quantity: 1 SETSCREW AND 1 PREFORMED PACKING AND 1 BRAZING RING; Flow Angle: 90.0 DEGREES; Connection Style: REDUCED SOCKET W/ ONE BRAZING RING (TUBE) FIRST END; Tubing Wall Nominal Thickness for Which Designed: 0.200 INCHES FIRST END IN. 10 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.