The Elbow,flange, cataloged under National Stock Number 4730-01-301-4425, 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 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-301-4425 |
| Item Name | Elbow,flange |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST ENDROUND WITH HOLES FIRST END |
| Flange Shape | ROUND WITH HOLES SECOND ENDROUND WITH HOLES SECOND END |
| FSC Application Data | VALVE EXH COMB INBD X OTBD |
| Flange Face Design | PLAIN SECOND ENDPLAIN SECOND END |
| Flange Face Design | RAISED STRAIGHT FIRST ENDRAISED STRAIGHT FIRST END |
| Bolt Circle Nominal Diameter | 24.000 INCHES SECOND END24.000 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 33.000 INCHES FIRST END33.000 INCHES FIRST END IN |
| Connection Type | FLANGE SECOND ENDFLANGE SECOND END |
| Connection Type | FLANGE AND FLANGE AND UNTHREADED INTERNAL PIPE FIRST ENDUNTHREADED INTERNAL PIPE FIRST END |
| Material Document and Classification | MIL-S-2300 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Bolt Hole Nominal Diameter | 1.960 INCHES SECOND END1.960 INCHES SECOND END IN |
| Leg Length | 25.000 INCHES NOMINAL FIRST END25.000 INCHES NOMINAL FIRST END IN |
| Leg Length | 27.000 INCHES NOMINAL SECOND END27.000 INCHES NOMINAL SECOND END IN |
| Nominal Outside Diameter | 26.400 INCHES SECOND END26.400 INCHES SECOND END IN |
| Nominal Outside Diameter | 36.500 INCHES FIRST END36.500 INCHES FIRST END IN |
| Bolt Hole Quantity | 18 SECOND END18 SECOND END |
| Bolt Hole Quantity | 26 FIRST END26 FIRST END |
| Material | STEEL BODY |
| Material | NICKEL ALLOY FLANGE |
| Raised Face Nominal Diameter | 27.9785 INCHES FIRST END IN |
| Raised Face Nominal Height | 1.500 INCHES FIRST END1.500 INCHES FIRST END IN |
| Nominal Thickness | 2.500 INCHES SECOND END2.500 INCHES SECOND END IN |
| Nominal Thickness | 3.250 INCHES FIRST END3.250 INCHES FIRST 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 |
|---|---|
| 4684416-0003 | 5/2 Secondary reference U.S. Government activity |
| 300-4684416 ITEM 3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-301-4425 is a Elbow,flange, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-301-4425: Flange Shape: ROUND WITH HOLES FIRST ENDROUND WITH HOLES FIRST END; Flange Shape: ROUND WITH HOLES SECOND ENDROUND WITH HOLES SECOND END; FSC Application Data: VALVE EXH COMB INBD X OTBD; Flange Face Design: PLAIN SECOND ENDPLAIN SECOND END. 23 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.