The Tailpiece,union, cataloged under National Stock Number 4730-01-285-0786, 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 5 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-285-0786 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Union Outside Diameter | 1.499 INCHES NOMINAL IN |
| Nominal Pipe Size Designation | 0.500 INCHES IN |
| End Connection Type | BRAZED |
| Seat Type | STRAIGHT FACE |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 803-1385946 | D/9 Drawing number reference only U.S. Government activity |
| 803-1385946 PC3, 1/2 INCH | 3/2 Design control — primary reference U.S. Government activity |
| B7568.001.130 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 810-1385946 | D/9 Drawing number reference only U.S. Government activity |
| 803-1385946 PC3 | 5/9 Secondary reference U.S. Government activity |
| 810-1385946 PC3 | 5/9 Secondary reference U.S. Government activity |
| B7568.001.130 | 5/1 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4730-01-285-0786 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-285-0786: Union Outside Diameter: 1.499 INCHES NOMINAL IN; Nominal Pipe Size Designation: 0.500 INCHES IN; End Connection Type: BRAZED; Overall Length: 1.060 INCHES NOMINAL IN. 5 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.