The Tee,boss, cataloged under National Stock Number 4730-01-725-7678, 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 Sae International Dba Sae International. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-725-7678 |
| Primary Part Number | AS4140V080608 |
| Item Name | Tee,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.577 INCHES ALL ENDS IN |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Surface Treatment Document and Classification | BPS-F-125. AMS 2700 TYPE 2 OR 8 MFR REF SINGLE TREATMENT RESPONSE NUT |
| Connection Style | SWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END |
| Connection Style | FLARELESS (TUBE) THIRD END |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | TEE |
| Material Document and Classification | UNABLE TO DECODE |
| Material Document and Classification | AMS5659 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 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 | 1.003 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.204 INCHES NOMINAL THIRD END IN |
| Leg Length | 1.143 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.5625 INCHES SECOND END IN |
| Nominal Thread Size | 0.7500 INCHES FIRST END IN |
| Nominal Thread Size | 0.7500 INCHES THIRD END IN |
| Surface Treatment | LUBRICANT DRY FILM AND PASSIVATE OVERALL |
| Media for Which Designed | UNABLE TO DECODE |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Thread Quantity Per Inch | 16 FIRST END |
| Thread Quantity Per Inch | 16 THIRD END |
| Thread Quantity Per Inch | 18 SECOND END |
| Material | UNABLE TO DECODE |
| 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 |
|---|---|
| AS4140V080608 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS4139 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-01-725-7678 is a Tee,boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-725-7678 has 1 manufacturer part number on file: AS4140V080608 (Sae International Dba Sae International).
Key specifications for AS4140V080608: Nominal Width Across Flats: 0.577 INCHES ALL ENDS IN; Surface Treatment Document and Classification: UNABLE TO DECODE; Surface Treatment Document and Classification: BPS-F-125. AMS 2700 TYPE 2 OR 8 MFR REF SINGLE TREATMENT RESPONSE NUT; Connection Style: SWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END. 27 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.