The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-665-1004, 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 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-665-1004 |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) THIRD END |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE THIRD END |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Style Designator | TEE |
| Leg Length | 1.05 INCHES NOMINAL THIRD END IN |
| Leg Length | 1.09 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.09 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.5 INCHES THIRD END IN |
| Nominal Outside Diameter | 1.0 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.0 INCHES SECOND END IN |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPTF THIRD 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 |
|---|---|
| 28-284 | 3/9 Design control — primary reference Vianney Industries, Llc Dba Midland Metal Manufacturing Company |
NSN 4730-01-665-1004 is a Tee,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 9340-01-722-7660. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-665-1004: Connection Style: PLAIN (PIPE) THIRD END; Connection Style: PLAIN (TUBE) SECOND END; Connection Style: PLAIN (TUBE) FIRST END; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 15 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.