The Elbow,flange to Hose, cataloged under National Stock Number 4730-00-423-2052, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Goodyear Tire and Rubber Co the. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-423-2052 |
| Primary Part Number | 321FB90 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Goodyear Tire and Rubber Co the |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED (HOSE) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 2.000 INCHES SECOND END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Leg Length | 6.750 INCHES NOMINAL SECOND END IN |
| Leg Length | 4.500 INCHES NOMINAL FIRST END IN |
| Nominal Outside Diameter | 2.812 INCHES FIRST END IN |
| Surface Treatment | CADMIUM OUTSIDE |
| Surface Treatment | CADMIUM INSIDE |
| Material | STEEL OVERALL |
| Nominal Thickness | 0.625 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 |
| Part Number | Manufacturer |
|---|---|
| 321FB90 PRIMARY | Goodyear Tire and Rubber Co the (USA) |
| Reference | Meaning |
|---|---|
| 903709C1 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
| 321FB90 | 5/9 Secondary reference Anchor Swan Corp Sub of Amerace Corp |
NSN 4730-00-423-2052 is a Elbow,flange to Hose, manufactured by Goodyear Tire and Rubber Co the, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-423-2052 has 1 manufacturer part number on file: 321FB90 (Goodyear Tire and Rubber Co the).
Key specifications for 321FB90: Flange Shape: ROUND FIRST END; Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: BEADED (HOSE) SECOND END. 14 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.