The Elbow,flange to Boss, cataloged under National Stock Number 4730-01-198-4243, 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 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-198-4243 |
| Item Name | Elbow,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.560 INCHES FIRST END IN |
| Leg Length | 0.810 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.390 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3B SECOND END |
| Material | ALUMINUM OVERALL |
| Thread Series Designator | UNF SECOND END |
| Nominal Thickness | 0.420 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 |
|---|---|
| 0-182-120-01 REVB PC001 | 5/2 Secondary reference U.S. Government activity |
| 0-169-009-05 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-198-4243 is a Elbow,flange to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-198-4243: Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: GASKET SEAL (BOSS) SECOND END; Connection Type: THREADED INTERNAL BOSS 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.