The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-590-8434, 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 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-590-8434 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Connection Type | UNTHREADED INTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Surface Treatment | ZINC AND DICHROMATE OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 11743-12-12 | 3/2 Design control — primary reference U.S. Government activity |
| 06B3640089 | D/9 Drawing number reference only Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
NSN 4730-01-590-8434 is a Elbow,flange to Hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-595-6314. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-590-8434: Flange Shape: ROUND FIRST END; Flange Face Design: PLAIN FIRST END; Connection Type: UNTHREADED INTERNAL HOSE SECOND END; Connection Type: FLANGE FIRST END. 7 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.