The Tailpiece,union, cataloged under National Stock Number 4730-01-155-5197, 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 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-155-5197 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 1.000 INCHES IN |
| Flange Thickness | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| End Connection Type | SWEAT SOLDER |
| Seat Type | GASKET |
| Material | STEEL COMP 304 |
| Flange Outside Diameter | 2.188 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN |
| Working Pressure and Service Type | 5100.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 5100.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 5100.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS 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 |
|---|---|
| 14-97-5359 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 516-4682385 | D/9 Drawing number reference only U.S. Government activity |
| 2621-791-01PC171 5IN.LG | 3/2 Design control — primary reference U.S. Government activity |
| 516-4682385F43 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-155-5197 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-155-5197: Nominal Pipe Size Designation: 1.000 INCHES IN; Flange Thickness: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN; End Connection Type: SWEAT SOLDER; Overall Length: 5.000 INCHES NOMINAL IN. 7 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.