The Elbow,flange to Pipe, cataloged under National Stock Number 4730-01-325-9020, 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 19 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-325-9020 |
| Item Name | Elbow,flange to Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Shape | RECTANGULAR WITH HOLES INLET |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 6.000 INCHES FIRST END IN |
| Flange Face Design | PLAIN SECOND END |
| Flange Face Design | PLAIN INLET |
| Connection Style | SOCKET BRAZING RING (PIPE) FIRST END |
| Nominal Length | 7.000 INCHES INLET IN |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE INLET |
| Material Document and Classification | QQ-C-20159,TY1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 6.500 INCHES MINIMUM AND 6.625 INCHES MAXIMUM SECOND END IN |
| Leg Length | 7.000 INCHES MINIMUM AND 7.125 INCHES MAXIMUM FIRST END IN |
| Nominal Outside Diameter | 10.875 INCHES SECOND END IN |
| Nominal Width | 7.000 INCHES INLET IN |
| Material | COPPER ALLOY AND NICKEL OVERALL |
| Nominal Thickness | 1.500 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 |
|---|---|
| 2621-166-02 PIECE 202MOD | 3/2 Design control — primary reference U.S. Government activity |
| 708-4684976 ITEM F50 | 5/2 Secondary reference U.S. Government activity |
| 2621-166-02 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-325-9020 is a Elbow,flange to Pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-329-2137, 4730-01-329-2138, 4730-01-329-2163. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-325-9020: Flange Shape: ROUND WITH HOLES SECOND END; Flange Shape: RECTANGULAR WITH HOLES INLET; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 6.000 INCHES FIRST END IN. 19 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.