The Tube,combustion Chamber, cataloged under National Stock Number 2840-00-458-3172, 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 2 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. 2 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 | 2840-00-458-3172 |
| Primary Part Number | 710688 |
| Item Name | Tube,combustion Chamber |
| 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 |
| FSC Application Data | JET ENGINE,AIRCRAFT,TF30P100 |
| General Characteristics Item Description | ONE END FLANGED,ONE END OVAL,2.812 FLANGE L,1.500 IN. FLANGE W,0.214 IN. MIN,0.224 IN. MAX DIA OF TWO MTG HOLES IN FLANGE 2.250 IN.HOLE CENTER TO HOLE CENTER,0.805 IN. MIN,0.905 IN. MAX TUBE ID AT FLANGE,1.345 IN. MIN,1.355 IN. MAX TUBE LARGEST OF AT OVAL END,1.125 IN. MIN,1.135 IN. MAX TUBE SMALLEST OD AT OVAL END IN |
| 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 |
|---|---|
| 710688 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 2840-00-458-3172 is a Tube,combustion Chamber, 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 2840-00-458-3172 has 1 manufacturer part number on file: 710688 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 3110-00-516-5491, 5840-01-369-5384. Verify interchangeability with system specifications before substitution.
Key specifications for 710688: FSC Application Data: JET ENGINE,AIRCRAFT,TF30P100; General Characteristics Item Description: ONE END FLANGED,ONE END OVAL,2.812 FLANGE L,1.500 IN. FLANGE W,0.214 IN. MIN,0.224 IN. MAX DIA OF TWO MTG HOLES IN FLANGE 2.250 IN.HOLE CENTER TO HOLE CENTER,0.805 IN. MIN,0.905 IN. MAX TUBE ID AT FLANGE,1.345 IN. MIN,1.355 IN. MAX TUBE LARGEST OF AT OVAL END,1.125 IN. MIN,1.135 IN. MAX TUBE SMALLEST OD AT OVAL END IN. 2 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 2840-00-458-3172 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.