PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14040Seal,air,aircraft Gas Turbine En

Eaton Corporation Dba Eaton Inoac Div Eaton · NSN 2840-00-931-5720 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-931-5720 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-931-5720. Primary manufacturer part number: 14040.
Features
  • Seal,air,aircraft Gas Turbine En — FSC 2840
  • Criticality Code Justification: AGAV
  • 4 verified cross-references
  • Primary manufacturer: Eaton Corporation Dba Eaton Inoac Div Eaton
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-00-931-5720, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2840-00-931-5720
Primary Part Number14040
Item NameSeal,air,aircraft Gas Turbine En
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac Div Eaton
StatusCANCELLED
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-264-194514040 INTERCHANGEABLE
Washer,flat
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5355-00-351-3998 INTERCHANGEABLE
Dial,scale
5915-00-501-444114040 INTERCHANGEABLE
Suppressor,parasitic
Viking Technologies, Ltd.
4810-00-713-596114040 INTERCHANGEABLE
Valve,rotary,selector
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5330-00-733-437399114040 INTERCHANGEABLE
Gasket
Alfa Laval Inc
2530-00-999-7519L18HB65 INTERCHANGEABLE
Seat,ball Socket
Trw Inc Trw Steering and Suspension Div
4820-01-158-68613G7242 INTERCHANGEABLE
Valve,safety Relief
Caterpillar Inc Div Caterpillar Defense
2915-01-249-850114040 INTERCHANGEABLE
Housing,cannister
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5950-01-287-8251 INTERCHANGEABLE
Coil,electrical
4320-01-527-591614040 INTERCHANGEABLE
Piston-Kickout
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
327B617P5 Union Machine Co of Lynn, Inc (USA)
327B617P5 General Electric Company Dba Ge Aerospace (USA)
A14040C Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
14040 PRIMARY Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
Related Parts
5310-00-264-1945INTERCHANGEABLE
WASHER,FLAT
14040
5355-00-351-3998INTERCHANGEABLE
DIAL,SCALE
5915-00-501-4441INTERCHANGEABLE
SUPPRESSOR,PARASITIC
14040
4810-00-713-5961INTERCHANGEABLE
VALVE,ROTARY,SELECTOR
14040
5330-00-733-4373INTERCHANGEABLE
GASKET
99114040
2530-00-999-7519INTERCHANGEABLE
SEAT,BALL SOCKET
L18HB65
4820-01-158-6861INTERCHANGEABLE
VALVE,SAFETY RELIEF
3G7242
2915-01-249-8501INTERCHANGEABLE
HOUSING,CANNISTER
14040
5950-01-287-8251INTERCHANGEABLE
COIL,ELECTRICAL
4320-01-527-5916INTERCHANGEABLE
PISTON-KICKOUT
14040
6515-01-578-1115INTERCHANGEABLE
SCREW,BONE
208.125
5120-01-678-4883INTERCHANGEABLE
HANDLE,TORQUE
14040

Frequently Asked Questions

What is NSN 2840-00-931-5720?

NSN 2840-00-931-5720 is a Seal,air,aircraft Gas Turbine En, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 2840 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2840-00-931-5720?

NSN 2840-00-931-5720 has 4 cross-referenced part numbers: 327B617P5 (Union Machine Co of Lynn, Inc), 327B617P5 (General Electric Company Dba Ge Aerospace), A14040C (Eaton Corporation Dba Eaton Inoac Div Eaton), 14040 (Eaton Corporation Dba Eaton Inoac Div Eaton).

What NSN replaces 2840-00-931-5720?

There are 12 known substitutes for 2840-00-931-5720: 5310-00-264-1945, 5355-00-351-3998, 5915-00-501-4441 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14040?

Key specifications for 14040: End Item Identification: J-85 AIRCRAFT ENGINE; Criticality Code Justification: AGAV. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2840-00-931-5720 still in active supply?

NSN 2840-00-931-5720 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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