The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-076-3593, 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 17 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-076-3593 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 FLAT WASHER AND 1 LOCKNUT AND 1 TUBE COUPLING NUT W/SLEEVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Style | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END BULKHEAD |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END BULKHEAD |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Leg Length | 0.838 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.015 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.438 INCHES SECOND END BULKHEAD IN |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Thread Class | 2A SECOND END BULKHEAD A |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| Thread Series Designator | UNF SECOND END BULKHEAD |
| 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 |
|---|---|
| 200114L PC654 | 5/9 Secondary reference U.S. Government activity |
| 228303Z7 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 4C5BUSV | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 228303Z7 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 200114L PC654 | 5/9 Secondary reference U.S. Government activity |
| 200114L PC654 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4730-01-076-3593 is a Elbow,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-076-3593: Furnished Items and Quantity: 1 FLAT WASHER AND 1 LOCKNUT AND 1 TUBE COUPLING NUT W/SLEEVE; Flow Angle: 90.0 DEGREES; Connection Style: PLAIN (TUBE) FIRST END; Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END BULKHEAD. 17 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.