The Tube,air Pressure,c, cataloged under National Stock Number 2840-00-018-4074, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2840-00-018-4074 |
| Primary Part Number | 452144 |
| Item Name | Tube,air Pressure,c |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Overall Diameter | 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Criticality Code Justification | ABHP AND ADAV |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 452144 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 452144 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 452144 | 5/9 Secondary reference Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders |
| 452144 | 5/9 Secondary reference Aero Tube Technologies, Llc Dba Tube Bends |
NSN 2840-00-018-4074 is a Tube,air Pressure,c, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-018-4074 has 1 manufacturer part number on file: 452144 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 452144: Overall Diameter: 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN; Criticality Code Justification: ABHP AND ADAV; Overall Length: 19.610 INCHES MINIMUM AND 19.650 INCHES MAXIMUM IN; Special Features: MATL AMS 5570. 3 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.