The Elbow,pipe to Boss, cataloged under National Stock Number 4730-01-154-9727, 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 21 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-154-9727 |
| Item Name | Elbow,pipe to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 RETAINING WIRE |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Union Joint Location | FIRST END |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.020 INCHES NOMINAL SECOND END IN |
| Leg Length | 3.370 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 1.625 INCHES SECOND END IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 80 FIRST END |
| Thread Class | 2A SECOND END A |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | NICKEL ALLOY NUT |
| Material | STEEL COMP 304 OVERALL |
| Material | STEEL COMP 316 LOCK NUT |
| Thread Series Designator | UN SECOND END |
| 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 |
|---|---|
| 262102102-0096 | 5/2 Secondary reference U.S. Government activity |
| 2621-021-02ASSY96 | 3/2 Design control — primary reference U.S. Government activity |
| 516-469578F24 | 5/2 Secondary reference U.S. Government activity |
| 2621-021-02 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-154-9727 is a Elbow,pipe to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-154-9727: Furnished Items and Quantity: 1 RETAINING WIRE; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END IN; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END. 21 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.