The Coupling,tube, cataloged under National Stock Number 4730-01-203-2245, 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11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-203-2245 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 RESTRICTOR |
| Surface Treatment Document and Classification | MIL-A-8625 TYPE 1 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | GROOVED (TUBE) ALL ENDS |
| Nominal Overall Length | 2.600 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | GROOVED BOTH ENDS |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.714 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.779 INCHES SECOND END IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| 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 |
|---|---|
| 3805003-3 | 3/2 Design control — primary reference U.S. Government activity |
| 3805003 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-203-2245 is a Coupling,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-203-2245: Furnished Items and Quantity: 1 RESTRICTOR; Surface Treatment Document and Classification: MIL-A-8625 TYPE 1 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: GROOVED (TUBE) ALL ENDS; Nominal Overall Length: 2.600 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.