The Manifold Assembly,coolant,afterb, cataloged under National Stock Number 2840-00-412-0271, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2840-00-412-0271 |
| Primary Part Number | 674721 |
| Item Name | Manifold Assembly,coolant,afterb |
| 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 |
| General Characteristics Item Description | CRES,AMS 5646,41.032&41.312 IN. WORKING LG,0.190&0.210 IN. TUBE ODZZZVGAIRCRAFT JET ENGINE,TF30 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 |
|---|---|
| 674721 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 659375 | 5/1 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 2840-00-412-0271 is a Manifold Assembly,coolant,afterb, 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 2840-00-412-0271 has 1 manufacturer part number on file: 674721 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5340-00-737-2895, 5330-00-972-7708. Verify interchangeability with system specifications before substitution.
Key specifications for 674721: General Characteristics Item Description: CRES,AMS 5646,41.032&41.312 IN. WORKING LG,0.190&0.210 IN. TUBE ODZZZVGAIRCRAFT JET ENGINE,TF30 IN. 1 specification is 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 2840-00-412-0271 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.