The Tailpiece,union, cataloged under National Stock Number 4730-01-314-8911, 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7 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-314-8911 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 0.250 INCHES IN |
| Flange Thickness | 0.195 INCHES NOMINAL IN |
| End Connection Type | WELDED |
| Seat Type | GASKET |
| Material | COPPER |
| Flange Outside Diameter | 1.063 INCHES NOMINAL IN |
| Working Pressure and Service Type | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM WATER 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 |
|---|---|
| 516-5486653 F34 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 2621-791-05 PIECE 17A | 3/9 Design control — primary reference U.S. Government activity |
| 845-4775990 PIECE 17A | 3/2 Design control — primary reference U.S. Government activity |
| 2621-791-05 | 5/9 Secondary reference U.S. Government activity |
| 845-4775990 | D/9 Drawing number reference only U.S. Government activity |
| 2621-791-05 PIECE 17A | 5/9 Secondary reference Nucraloy Corp |
NSN 4730-01-314-8911 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-314-8911: Nominal Pipe Size Designation: 0.250 INCHES IN; Flange Thickness: 0.195 INCHES NOMINAL IN; End Connection Type: WELDED; Overall Length: 1.210 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.