NSN 2840-01-618-8631 · NIIN 016188631 · Part number 23083920
Rolls-Royce Corporation · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 63005
Government record, cited
NSN 2840-01-618-8631 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-618-8631. Manufacturer of record part number: 23083920.
Also searched as2840-01-618-8631 ·
2840016188631 ·
NIIN 016188631 ·
01-618-8631 ·
FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 63005 · 23083920
Nearby stock numbers← 2840-01-618-8481 Housing, Oil Sump, Aircraft Gas Tu
·
2840-01-618-8858 Deflector, Airflow →
Features
Tool,prop Shaft Sea — FSC 2840
1 manufacturer part number on file
Manufacturer of record: Rolls-Royce Corporation
Identification
NSN: 2840-01-618-8631
NIIN: 016188631
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 23083920
Manufacturer: Rolls-Royce Corporation
General Description
The Tool,prop Shaft Sea, cataloged under National Stock Number 2840-01-618-8631, 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 Rolls-Royce Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2840-01-618-8631
Primary Part Number
23083920
Item Name
Tool,prop Shaft Sea
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 2840-01-618-8631?
NSN 2840-01-618-8631 is a Tool,prop Shaft Sea, manufactured by Rolls-Royce Corporation, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
What part numbers are listed for NSN 2840-01-618-8631?
NSN 2840-01-618-8631 has 1 manufacturer part number on file: 23083920 (Rolls-Royce Corporation).
What are the specifications of 23083920?
Key specifications for 23083920: Special Features: STAINLESS STEEL; USED FOR INSTALLATION AND REMOVAL OF PROPELLER SHAFT SEAL; Part Name Assigned by Controlling Agency: SERD: EXPANDER, PROPELLER SHAFT SEAL; End Item Identification: TURBO PROP ENGINES T56-A-425 AND T56-A-427. 0 specifications are documented in the U.S. Government catalog.
Is NSN 2840-01-618-8631 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 2840-01-618-8631?
NSN 2840-01-618-8631 has DEMIL Code B. 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.