The Tee,tube, cataloged under National Stock Number 4730-00-815-5686, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Mueller Brass Co.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-815-5686 |
| Primary Part Number | W4018 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mueller Brass Co. |
| Status | ACTIVE |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Leg Length | 1.062 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.000 INCHES NOMINAL THIRD END IN |
| Leg Length | 1.062 INCHES NOMINAL FIRST END IN |
| Material | COPPER OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| W4018 PRIMARY | Mueller Brass Co. (USA) |
| Reference | Meaning |
|---|---|
| WT600W4018 | 5/9 Secondary reference Mueller Brass Co. |
| 611-5-8X5-8X1-2 | 5/9 Secondary reference Nibco Inc |
| B16-22 | 5/1 Secondary reference U.S. Government activity |
NSN 4730-00-815-5686 is a Tee,tube, manufactured by Mueller Brass Co., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-815-5686 has 1 manufacturer part number on file: W4018 (Mueller Brass Co.).
Key specifications for W4018: Connection Style: SOCKET (TUBE) ALL ENDS; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES SECOND END IN; Nominal Outside Diameter Tube Accommodated: 0.625 INCHES THIRD END IN. 9 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.