The Tee,pipe to Tube, cataloged under National Stock Number 4730-00-834-6879, 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 Swagelok Co. Government technical data includes 24 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-834-6879 |
| Primary Part Number | A400-3TMT |
| Item Name | Tee,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 SHORT COUPLING NUT AND 4 FERRULE 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 | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD END IN |
| Leg Length | 0.780 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.720 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.720 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.438 INCHES THIRD END IN |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 20.0 DEGREES FIRST END |
| Seat Angle | 2.0 DEGREES THIRD END |
| Surface Treatment | ANODIZE OUTSIDE |
| Thread Class | 2A FIRST END A |
| Thread Class | 2A THIRD END A |
| Material | ALUMINUM ALLOY 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 |
|---|---|
| A400-3TMT PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 4-2-4RBZD | 5/9 Secondary reference Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn |
| 11448088-2 | 5/1 Secondary reference Us Army Aviation and Missile Command |
| 4-2-4 RBZ-D | 5/9 Secondary reference Parker-Hannifin Corporation Div Instrumentation Products Division |
| 4TMT2A | 5/9 Secondary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| 4-2-4RBZ-A | 5/9 Secondary reference Parker-Hannifin Corporation Div Instrumentation Products Division |
| 4TMT2A | 5/9 Secondary reference J R Douglass Company |
| ST11259 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-834-6879 is a Tee,pipe to Tube, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-834-6879 has 1 manufacturer part number on file: A400-3TMT (Swagelok Co).
Key specifications for A400-3TMT: Furnished Items and Quantity: 2 SHORT COUPLING NUT AND 4 FERRULE SLEEVE; Connection Style: FLARELESS (TUBE) THIRD END; Connection Style: FLARELESS (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END. 24 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.