The Tee,pipe to Tube, cataloged under National Stock Number 4730-00-726-0992, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 25 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-726-0992 |
| Primary Part Number | 4-4-4 RBU-S C*C |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 COUPLING SLEEVE AND 2 TUBE COUPLING NUT |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Style | GASKET SEAL (TUBE) THIRD 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 | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD END IN |
| Leg Length | 0.938 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.859 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Nominal Thread Size | 0.500 INCHES THIRD END IN |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Maximum Operating Temp | 315.0 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | CADMIUM OUTSIDE |
| Surface Treatment | CADMIUM INSIDE |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A THIRD END A |
| Material | STEEL COMP 1117 OVERALL |
| Thread Series Designator | NPT SECOND END |
| Thread Series Designator | UNF THIRD END |
| Thread Series Designator | UNF 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 |
| Part Number | Manufacturer |
|---|---|
| 4-4-4 RBU-S C*C PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 771FS04X04 | 3/9 Design control — primary reference Imperial |
| 771FS1-4X1-4 | 5/9 Secondary reference Imperial |
NSN 4730-00-726-0992 is a Tee,pipe to Tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-726-0992 has 1 manufacturer part number on file: 4-4-4 RBU-S C*C (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for 4-4-4 RBU-S C*C: Furnished Items and Quantity: 2 COUPLING SLEEVE AND 2 TUBE COUPLING NUT; Connection Style: GASKET SEAL (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Connection Style: GASKET SEAL (TUBE) THIRD END. 25 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.