The Tube and Fittings,metallic, cataloged under National Stock Number 4710-01-239-2198, 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 Northrop Grumman Systems Corporation. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-239-2198 |
| Primary Part Number | A51P91271-423 |
| Item Name | Tube and Fittings,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 1 SINGLE END |
| Material Document and Classification | WW-T-700/4, ALLOY 5052 FED SPEC SINGLE MATERIAL RESPONSE TUBING |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T6 FED SPEC 1ST MATERIAL RESPONSE SINGLE END |
| Wall Thickness | 0.035 INCHES NOMINAL IN |
| End Connection Style | UNTHREADED INTERNAL SINGLE END |
| Tube Outside Diameter | 1.500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 SINGLE END |
| Material | ALUMINUM ALLOY 5052 TUBING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A51P91271-423 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51P91271-423 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51P91271-423 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51P91271 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 4710-01-239-2198 is a Tube and Fittings,metallic, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-239-2198 has 1 manufacturer part number on file: A51P91271-423 (Northrop Grumman Systems Corporation).
Key specifications for A51P91271-423: Design Form: PREBENT; Mating End Quantity: 1 SINGLE END; Material Document and Classification: WW-T-700/4, ALLOY 5052 FED SPEC SINGLE MATERIAL RESPONSE TUBING; Material Document and Classification: QQ-A-225/6, ALLOY 2024, T6 FED SPEC 1ST MATERIAL RESPONSE SINGLE END. 9 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.
NSN 4710-01-239-2198 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.