The Union,tube, cataloged under National Stock Number 4730-01-255-5314, 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 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-255-5314 |
| Item Name | Union,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 BULKHEAD NUT AND 1 INVERTED COMPRESSION NUT WITH SLEEVE AND 1 TUBE COUPLING INVERTED NUT |
| Thread Tolerance Class | 4H6H EXTERNAL FIRST END |
| Thread Tolerance Class | 4H6H EXTERNAL SECOND END |
| Connection Style | GRIPPING (HOSE) FIRST END |
| Connection Style | COMPRESSION (TUBE) SECOND END |
| Seat Nominal Radius | 1.4 MILLIMETERS SECOND END MM |
| Thread Pitch in Millimeters | 1.5 SECOND END |
| Thread Pitch in Millimeters | 1.5 FIRST END |
| Nominal Overall Length | 45.9 MILLIMETERS MM |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Material Document and Classification | ASTM B88,UNS C10200 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Outside Diameter Tube Accommodated | 10.0 MILLIMETERS FIRST END MM |
| Nominal Outside Diameter Tube Accommodated | 10.0 MILLIMETERS SECOND END MM |
| Operating Pressure | 75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 14.0 MILLIMETERS SECOND END MM |
| Nominal Thread Size | 14.0 MILLIMETERS FIRST END MM |
| Maximum Operating Temp | 175.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY 102 BODY |
| Material | COPPER ALLOY 102 BRAZING RING |
| Material | COPPER ALLOY 102 LONG SWIVEL NUT |
| Thread Series Designator | ISO M SECOND END |
| Thread Series Designator | ISO M FIRST 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 |
|---|---|
| M-282-P-10/7 | 3/9 Design control — primary reference Imperial |
NSN 4730-01-255-5314 is a Union,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-255-5314: Furnished Items and Quantity: 2 BULKHEAD NUT AND 1 INVERTED COMPRESSION NUT WITH SLEEVE AND 1 TUBE COUPLING INVERTED NUT; Thread Tolerance Class: 4H6H EXTERNAL FIRST END; Thread Tolerance Class: 4H6H EXTERNAL SECOND END; Connection Style: GRIPPING (HOSE) FIRST END. 23 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.