The Tee,tube, cataloged under National Stock Number 4730-01-712-8797, 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 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-712-8797 |
| Primary Part Number | AS4139T080806 |
| Item Name | Tee,tube |
| 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 CENTER BULKHEAD IN |
| Surface Treatment Document and Classification | AMS2700 NATIONAL SPEC SINGLE TREATMENT RESPONSE AND AS5272 TYPE I NATIONAL STD SINGLE TREATMENT RESPONSE BODY |
| Connection Style | FLARELESS (TUBE) THIRD END |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Connection Style | SWIVEL NUT FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL)(TUBE) FIRST END |
| Seat Nominal Radius | 0.400 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Style Designator | TEE |
| Material Document and Classification | AMS4928 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 | 1.204 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.143 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.971 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Nominal Thread Size | 0.5625 INCHES THIRD END IN |
| Seat Angle | 24.0 DEGREES SECOND END |
| Seat Angle | 24.0 DEGREES THIRD END |
| Surface Treatment | PHOSPHATE FLUORIDE AND LUBRICANT DRY FILM BODY |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Thread Class | 3A SECOND END A |
| Thread Class | 3A THIRD END A |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 16 SECOND 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 |
|---|---|
| AS4139T080806 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS4139 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 4730-01-712-8797 is a Tee,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-712-8797 has 1 manufacturer part number on file: AS4139T080806 (Sae International Dba Sae International).
11 possible matches (shared part number, not a government interchangeability claim): 4730-01-722-7555, 4730-01-722-7558, 4730-01-722-7561. Verify interchangeability with system specifications before substitution.
Key specifications for AS4139T080806: Nominal Width Across Flats: 0.577 INCHES CENTER BULKHEAD IN; Surface Treatment Document and Classification: AMS2700 NATIONAL SPEC SINGLE TREATMENT RESPONSE AND AS5272 TYPE I NATIONAL STD SINGLE TREATMENT RESPONSE BODY; Connection Style: FLARELESS (TUBE) THIRD END; Connection Style: FLARELESS (TUBE) SECOND END. 29 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.