The Tube Assembly,metal, cataloged under National Stock Number 4710-01-253-2346, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4710-01-253-2346 |
| Primary Part Number | 331230A01 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 1 SECOND END |
| Mating End Quantity | 1 FIRST END |
| Material Document and Classification | ASTM B280 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Material Document and Classification | ASTM B280 ASSN STD SINGLE MATERIAL RESPONSE SINGLE END |
| Wall Thickness | 0.030 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| End Connection Style | FLARE FIRST END |
| End Connection Style | UNTHREADED EXTERNAL SECOND END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Class | 2B SECOND END |
| Material | COPPER ALLOY SINGLE END |
| Material | COPPER ALLOY TUBING |
| End Connection Spec/std | MS39166 |
| Connection Special Design | UNION 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 |
|---|---|
| 331230A01 PRIMARY | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 331230A01 | 5/9 Secondary reference Howden Fluid Systems |
NSN 4710-01-253-2346 is a Tube Assembly,metal, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-253-2346 has 1 manufacturer part number on file: 331230A01 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
Key specifications for 331230A01: Design Form: PREBENT; Mating End Quantity: 1 SECOND END; Mating End Quantity: 1 FIRST END; Material Document and Classification: ASTM B280 ASSN STD SINGLE MATERIAL RESPONSE TUBING. 16 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.