The Tee,pipe to Tube, cataloged under National Stock Number 4730-01-283-1879, 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 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-283-1879 |
| Primary Part Number | 2-4RBU-SS |
| 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 TUBE COUPLING NUT W/SLEEVE |
| Connection Style | FLARELESS (TUBE) THIRD END |
| Connection Style | FLARELESS (TUBE) FIRST 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 |
| Nominal Outside Diameter Tube Accommodated | 0.125 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.125 INCHES FIRST END IN |
| Leg Length | 2.016 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.016 INCHES NOMINAL THIRD END IN |
| Leg Length | 2.641 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.312 INCHES FIRST END IN |
| Nominal Thread Size | 0.312 INCHES THIRD END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Seat Angle | 12.0 DEGREES THIRD END |
| Seat Angle | 12.0 DEGREES FIRST END |
| Specification/standard Data | 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 22C FIGURE |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Thread Class | 2A FIRST END A |
| Thread Class | 2A THIRD END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | NPTF 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 |
|---|---|
| 2-4RBU-SS PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| SAE J514-2 2-4-2 080424SA PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| J514 | 5/1 Secondary reference Sae International Dba Sae International |
| J514 | 5/9 Secondary reference U.S. Government activity |
| SAE J514 2-4-2 080424SA | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-J514 | 5/9 Secondary reference Sae International Dba Sae International |
| 2-4-2 080424SA | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-J514-2 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 2-4RBU-SS | 5/9 Secondary reference U.S. Government activity |
| 2-4-2 080424SA | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-283-1879 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 4730-01-283-1879 has 2 manufacturer part numbers on file: 2-4RBU-SS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), SAE J514-2 2-4-2 080424SA (Sae International Dba Sae International).
Key specifications for 2-4RBU-SS: Furnished Items and Quantity: 2 TUBE COUPLING NUT W/SLEEVE; Connection Style: FLARELESS (TUBE) THIRD END; Connection Style: FLARELESS (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END. 26 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.