The Tailpiece,union, cataloged under National Stock Number 4730-01-283-3935, 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 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-283-3935 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Union Outside Diameter | 3.038 INCHES NOMINAL IN |
| Nominal Pipe Size Designation | 2.000 INCHES IN |
| Seat Angle in Deg | 45.0 |
| End Connection Type | WELDED |
| Seat Type | ANGLE |
| Specification/standard Data | 81349-MIL-F-1183 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 28 FIGURE |
| Material | COPPER ALLOY |
| Working Pressure and Service Type | 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR AND 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 200.0 POUNDS PER SQUARE INCH (PSI) NOMINAL STEAM LBS |
| 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 |
|---|---|
| MIL-F-1183 | 4/1 Identification reference U.S. Government activity |
| 803-4384536 | D/9 Drawing number reference only U.S. Government activity |
| 803-4384536 PC24 SCH 40 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-283-3935 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-283-3935: Union Outside Diameter: 3.038 INCHES NOMINAL IN; Nominal Pipe Size Designation: 2.000 INCHES IN; Seat Angle in Deg: 45.0; End Connection Type: WELDED. 9 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.