The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-027-5817, 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 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-027-5817 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES FIRST END |
| Flow Angle | 100.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED HOSE SECOND END |
| Nominal Length | 3.950 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 3.200 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 2.500 INCHES SECOND END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Material Document and Classification | QQ-A-596,T6 FED SPEC SINGLE MATERIAL RESPONSE AND QQ-A-601,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.422 INCHES FIRST END IN |
| Operating Pressure | 18.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 3.000 INCHES NOMINAL SECOND END IN |
| Bolt Hole Quantity | 2 FIRST END |
| Nominal Width | 2.875 INCHES FIRST END IN |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | ALUMINUM ALLOY 356.0 OVERALL |
| Nominal Thickness | 0.281 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 |
|---|---|
| 4169327 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-027-5817 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): 5340-01-644-1534. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-027-5817: Flange Shape: OVAL WITH HOLES FIRST END; Flow Angle: 100.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: BEADED HOSE SECOND END. 18 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.