The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-381-4540, 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 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-381-4540 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Tubing Wall Nominal Thickness for Which Designed | 0.185 INCHES SECOND END IN |
| Nominal Overall Length | 1.280 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Pipe Wall Thickness Designation for Which Designed | STANDARD FIRST END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT 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 |
|---|---|
| 1068X6 | 3/9 Design control — primary reference Fittings, Inc. |
NSN 4730-01-381-4540 is a Adapter,straight,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-381-4540: Connection Style: PLAIN (TUBE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Tubing Wall Nominal Thickness for Which Designed: 0.185 INCHES SECOND END IN; Nominal Overall Length: 1.280 INCHES IN. 11 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.