The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-485-4574, 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 28 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-485-4574 |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | FLARED (TUBE) THIRD END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | MIL-F-18866 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES THIRD END IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.640 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.330 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.330 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 1.500 INCHES SECOND END IN |
| Nominal Thread Size | 1.875 INCHES FIRST END IN |
| Nominal Thread Size | 1.875 INCHES THIRD END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES THIRD END |
| Specification/standard Data | 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51511 GOVERNMENT STANDARD |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | CADMIUM OVERALL |
| Media for Which Designed | AIR SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID FIRST RESPONSE |
| Thread Class | 2A FIRST END A |
| Thread Class | 2A THIRD END A |
| Thread Quantity Per Inch | 12 THIRD END |
| Thread Quantity Per Inch | 12 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 |
|---|---|
| MS51511 | 5/9 Secondary reference U.S. Government activity |
| MS51511B24 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
NSN 4730-01-485-4574 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): 4730-01-691-1060. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-485-4574: Surface Treatment Document and Classification: QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) FIRST END; Connection Style: FLARED (TUBE) THIRD END; Connection Style: PLAIN (PIPE) SECOND END. 28 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.