NSN 2840-01-018-1869 · NIIN 010181869 · Part number 4026510
Unison Engine Components Inc. · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 16126
Government record, cited
NSN 2840-01-018-1869 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-018-1869. Manufacturer of record part number: 4026510.
Also searched as2840-01-018-1869 ·
2840010181869 ·
NIIN 010181869 ·
01-018-1869 ·
FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 16126 · 4026510
Overall Diameter: 7.613 INCHES MINIMUM AND 7.615 INCHES MAXIMUM IN
Criticality Code Justification: MATT AND ADAV AND FEAT AND AGAV
Material: NICKEL ALLOY
2 manufacturer part numbers on file
Manufacturer of record: Unison Engine Components Inc.
Identification
NSN: 2840-01-018-1869
NIIN: 010181869
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 4026510
Manufacturer: Unison Engine Components Inc.
General Description
The Ring,cellular,structural,turbine, cataloged under National Stock Number 2840-01-018-1869, 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 Unison Engine Components Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2840-01-018-1869
Primary Part Number
4026510
Item Name
Ring,cellular,structural,turbine
FSC / FSG
2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Other items in FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2840-00-000-0048
ENGINE,AIRCRAFT,TURBO-SHAFT
2840-00-000-0049
MODIFICATION KIT,ENGINE
2840-00-001-1741
CASE AND NOZZLE ASSEMBLY,TURBINE
2840-00-001-1743
2840-00-001-1743 · Item name not on file
2840-00-001-2117
2840-00-001-2117 · Item name not on file
2840-00-001-2284
2840-00-001-2284 · Item name not on file
2840-00-001-3922
2840-00-001-3922 · Item name not on file
2840-00-001-4903
SEAL,AIR,AIRCRAFT GAS TURBINE EN
Frequently Asked Questions
What is NSN 2840-01-018-1869?
NSN 2840-01-018-1869 is a Ring,cellular,structural,turbine, manufactured by Unison Engine Components Inc., classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
What part numbers are listed for NSN 2840-01-018-1869?
NSN 2840-01-018-1869 has 2 manufacturer part numbers on file: 4026510 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4026510 (Unison Engine Components Inc.).
What are the specifications of 4026510?
Key specifications for 4026510: Overall Diameter: 7.613 INCHES MINIMUM AND 7.615 INCHES MAXIMUM IN; Criticality Code Justification: MATT AND ADAV AND FEAT AND AGAV; Special Features: MATL AMS 5540; End Item Identification: ENGINE,ACFT,TURBOFAN,MODEL NO. F100-PW-100. 3 specifications are documented in the U.S. Government catalog.
Is NSN 2840-01-018-1869 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 2840-01-018-1869?
NSN 2840-01-018-1869 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.