The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-126-9170, 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 13 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-126-9170 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LOCKNUT AND 2 PREFORMED PACKING AND 1 TAILPIECE AND 1 FLAT WASHER |
| Flow Angle | 90.0 DEGREES |
| Connection Style | SOCKET (TUBE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.190 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.690 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Thread Class | 2A SECOND END A |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 704-4685589 ITEM F4 | 5/2 Secondary reference U.S. Government activity |
| 2621-021-02 ASSY 80 | 3/2 Design control — primary reference U.S. Government activity |
| 15-97-0185 | 5/2 Secondary reference U.S. Government activity |
| 2621-021-02 | D/9 Drawing number reference only U.S. Government activity |
| 704-4685589 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-126-9170 is a Elbow,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-126-9170: Furnished Items and Quantity: 1 LOCKNUT AND 2 PREFORMED PACKING AND 1 TAILPIECE AND 1 FLAT WASHER; Flow Angle: 90.0 DEGREES; Connection Style: SOCKET (TUBE) FIRST END; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 13 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.