NSN 2840-00-800-3943 · NIIN 008003943 · Part number 405316
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 77445
Government record, cited
NSN 2840-00-800-3943 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-800-3943. Manufacturer of record part number: 405316.
Also searched as2840-00-800-3943 ·
2840008003943 ·
NIIN 008003943 ·
00-800-3943 ·
FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 77445 · 405316
Nearby stock numbers← 2840-00-800-3353 Seal, Air, Aircraft Gas Turbine En
·
2840-00-800-3945 Connector, Tube, Main →
Features
Cover,diffuser Case — FSC 2840
Criticality Code Justification: FEAT
2 manufacturer part numbers on file
Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Identification
NSN: 2840-00-800-3943
NIIN: 008003943
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 405316
Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
General Description
The Cover,diffuser Case, cataloged under National Stock Number 2840-00-800-3943, 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 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
2840-00-800-3943
Primary Part Number
405316
Item Name
Cover,diffuser Case
FSC / FSG
2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Manufacturer
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
No interchangeability data on file.
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 2840-00-800-3943?
NSN 2840-00-800-3943 is a Cover,diffuser Case, 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.
What part numbers are listed for NSN 2840-00-800-3943?
NSN 2840-00-800-3943 has 2 manufacturer part numbers on file: 405316 (Rtx Corporation Div Pratt & Whitney), 405316 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
What are the specifications of 405316?
Key specifications for 405316: Criticality Code Justification: FEAT; Special Features: THIS PART MEETS THE Y REQUIREMENTS DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY. ACTION ID 45371934; End Item Identification: PRATT / WHITNEY JET ENGINES / COMPONENTS. 1 specification is documented in the U.S. Government catalog.
Is NSN 2840-00-800-3943 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 2840-00-800-3943?
NSN 2840-00-800-3943 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.