PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65A138-48Cooler,lubricating Oil,engine

Triumph Thermal Systems, Llc · NSN 2930-00-231-6828 · FSC 2930 · No Item Name Available
Verified by PartsTable
NSN 2930-00-231-6828 — this item is cataloged by the U.S. Government under National Stock Number 2930-00-231-6828. Primary manufacturer part number: 65A138-48.
Features
  • Cooler,lubricating Oil,engine — FSC 2930
  • Drain Plug Location: SIDE
  • Heat Transfer Method: INDIRECT
  • Style Designator: UPRIGHT STRAIGHT FINNED TYPE
  • 4 verified cross-references
  • Primary manufacturer: Triumph Thermal Systems, Llc
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Cooler,lubricating Oil,engine, cataloged under National Stock Number 2930-00-231-6828, is classified within Federal Supply Class 2930 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2930-00-231-6828
Primary Part Number65A138-48
Item NameCooler,lubricating Oil,engine
FSC / FSG2930 / 29 — No Item Name Available
ManufacturerTriumph Thermal Systems, Llc
StatusCANCELLED
Drain Plug LocationSIDE
Heat Transfer MethodINDIRECT
Style DesignatorUPRIGHT STRAIGHT FINNED TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3020-00-891-511410131631 INTERCHANGEABLE
Gear,spur
Us Army Aviation and Missile Command
5330-01-274-836455620 INTERCHANGEABLE
Seal,plain
Altra Industrial Motion Corp.
6685-01-319-8195213.40-2 1/2-1/4CBM/UC/0-600PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Wika Holding Lp
6680-01-406-042555620 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
4520-01-430-271155620 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
5365-01-671-114155620 INTERCHANGEABLE
Plug,machine Thread
Malabar
Cross-Reference Index
Part NumberManufacturer
55620 Drs Environmental Systems Inc (USA)
65A138-48 PRIMARY Triumph Thermal Systems, Llc (USA)
55620 Hdt Expeditionary Systems Inc (USA)
55620 Keco Industries, Inc. (USA)
Related Parts
3020-00-891-5114INTERCHANGEABLE
GEAR,SPUR
10131631
5330-01-274-8364INTERCHANGEABLE
SEAL,PLAIN
55620
6685-01-319-8195INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
213.40-2 1/2-1/4CBM/UC/0-600PSI
6680-01-406-0425INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
55620
4520-01-430-2711INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
55620
5365-01-671-1141INTERCHANGEABLE
PLUG,MACHINE THREAD
55620

Frequently Asked Questions

What is NSN 2930-00-231-6828?

NSN 2930-00-231-6828 is a Cooler,lubricating Oil,engine, manufactured by Triumph Thermal Systems, Llc, classified under FSC 2930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2930-00-231-6828?

NSN 2930-00-231-6828 has 4 cross-referenced part numbers: 55620 (Drs Environmental Systems Inc), 65A138-48 (Triumph Thermal Systems, Llc), 55620 (Hdt Expeditionary Systems Inc), 55620 (Keco Industries, Inc.).

What NSN replaces 2930-00-231-6828?

There are 6 known substitutes for 2930-00-231-6828: 3020-00-891-5114, 5330-01-274-8364, 6685-01-319-8195 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 65A138-48?

Key specifications for 65A138-48: End Item Identification: 4120-00-063-9574; Drain Plug Location: SIDE; Heat Transfer Method: INDIRECT; Style Designator: UPRIGHT STRAIGHT FINNED TYPE. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2930-00-231-6828 still in active supply?

NSN 2930-00-231-6828 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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