The Elbow,flange to Pipe, cataloged under National Stock Number 4730-01-325-3984, 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 16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-325-3984 |
| 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 |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 4.000 INCHES FIRST END IN |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | SOCKET W/ GROVE (PIPE) FIRST END |
| Bolt Circle Nominal Diameter | 6.562 INCHES SECOND END IN |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | FLANGE SECOND END |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 5.000 INCHES NOMINAL SECOND END IN |
| Leg Length | 4.781 INCHES NOMINAL FIRST END IN |
| Nominal Outside Diameter | 7.688 INCHES SECOND END IN |
| Bolt Hole Quantity | 8 SECOND END |
| Material | COPPER ALLOY OVERALL |
| Nominal Thickness | 0.500 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 |
|---|---|
| 510-4685930 ITEM F3 | 5/2 Secondary reference U.S. Government activity |
| 4685930 | D/9 Drawing number reference only U.S. Government activity |
| 2621-166-01 PIECE 106 | 5/2 Secondary reference U.S. Government activity |
| 15-97-3353 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-325-3984 is a Elbow,flange to Pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-325-6965. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-325-3984: Flange Shape: ROUND WITH HOLES SECOND END; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 4.000 INCHES FIRST END IN; Flange Face Design: PLAIN SECOND END. 16 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.