The Elbow,flange to Tube, cataloged under National Stock Number 4730-01-325-6966, 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 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-325-6966 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | SOCKET BRAZING RING (TUBE) FIRST END |
| Bolt Circle Nominal Diameter | 3.937 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES FIRST END IN |
| Leg Length | 3.625 INCHES NOMINAL FIRST END IN |
| Leg Length | 3.250 INCHES NOMINAL SECOND END IN |
| Nominal Outside Diameter | 5.062 INCHES SECOND END IN |
| Bolt Hole Quantity | 6 SECOND END |
| Material | COPPER ALLOY OVERALL |
| Nominal Thickness | 0.438 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 |
|---|---|
| 2621-166-01 | D/9 Drawing number reference only U.S. Government activity |
| 508-4685778 ITEM F11 | 5/2 Secondary reference U.S. Government activity |
| 2621-166-01 PIECE 7 | 3/2 Design control — primary reference U.S. Government activity |
| 508-4685844 ITEM F17 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-325-6966 is a Elbow,flange to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-343-0477. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-325-6966: Flange Shape: ROUND WITH HOLES SECOND END; Flange Face Design: PLAIN SECOND END; Connection Style: SOCKET BRAZING RING (TUBE) FIRST END; Bolt Circle Nominal Diameter: 3.937 INCHES SECOND END IN. 15 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.