The Tee,boss, cataloged under National Stock Number 4730-01-725-8149, 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28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-725-8149 |
| Item Name | Tee,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.577 INCHES ALL ENDS IN |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Surface Treatment Document and Classification | AMS2700 TYPE 2 OR 8 ASSN STD SINGLE TREATMENT RESPONSE BODY |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Style Designator | TEE |
| Material Document and Classification | UNABLE TO DECODE |
| Material Document and Classification | AMS5659 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.273 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.273 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.055 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.7500 INCHES SECOND END IN |
| Nominal Thread Size | 0.7500 INCHES FIRST END IN |
| Nominal Thread Size | 0.5625 INCHES THIRD END IN |
| Surface Treatment | PASSIVATE BODY |
| Surface Treatment | UNABLE TO DECODE |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 16 SECOND END |
| Thread Quantity Per Inch | 16 FIRST END |
| Thread Quantity Per Inch | 18 THIRD END |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Reference Number Differentiating Characteristics | ITEM IS FAA CERTIFIED |
| 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 |
|---|---|
| AS4133 | 5/1 Secondary reference Sae International Dba Sae International |
| AS4133V080806 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 4730-01-725-8149 is a Tee,boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-725-8149: Nominal Width Across Flats: 0.577 INCHES ALL ENDS IN; Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: UNABLE TO DECODE; Surface Treatment Document and Classification: AMS2700 TYPE 2 OR 8 ASSN STD SINGLE TREATMENT RESPONSE BODY. 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.