PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

122984DCooler,fluid,transmission

Oshkosh Defense Llc · NSN 2520-01-183-0731 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-183-0731 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-183-0731. Primary manufacturer part number: 122984D.
Features
  • Cooler,fluid,transmission — FSC 2520
  • Material: STEEL PLATES
  • Height: 40.000 INCHES NOMINAL IN
  • Style Designator: UPRIGHT STRAIGHT FINNED TYPE
  • Heat Transfer Method: INDIRECT
  • Thickness: 2.000 INCHES NOMINAL IN
  • Length: 48.000 INCHES MINIMUM AND 51.000 INCHES MAXIMUM IN
  • 4 verified cross-references
Applications
  • Applications requiring Steel Plates construction
General Description

The Cooler,fluid,transmission, cataloged under National Stock Number 2520-01-183-0731, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Oshkosh Defense Llc. Government technical data includes 6 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-01-183-0731
Primary Part Number122984D
Item NameCooler,fluid,transmission
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerOshkosh Defense Llc
StatusACTIVE
MaterialSTEEL PLATES
Height40.000 INCHES NOMINAL IN
Style DesignatorUPRIGHT STRAIGHT FINNED TYPE
Heat Transfer MethodINDIRECT
Thickness2.000 INCHES NOMINAL IN
Length48.000 INCHES MINIMUM AND 51.000 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5985-00-083-2782699 INTERCHANGEABLE
Horn,waveguide
Waveline Inc
5975-00-109-53702611 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
4730-00-270-390113229E0854 INTERCHANGEABLE
Chuck,air,inflating
Cecom Lr Center
5110-00-357-5593 INTERCHANGEABLE
Chisel Set,cold,hand
4730-00-497-4456AS5206W06 INTERCHANGEABLE
Nut,tube Coupling
Sae International Dba Sae International
5365-00-598-5418699 INTERCHANGEABLE
Bushing,nonmetallic
Atlantic India Rubber Co Inc
5945-00-857-890771010461-001 INTERCHANGEABLE
Solenoid,electrical
The Aeronautical Instrument and Radio Company Dba the Aeronautical Instrument and Radio Company Div the Aeronautical Instrument and
2530-00-864-0964F11337 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
6625-00-893-716510187733-001 INTERCHANGEABLE
Lead Set,test
Us Army Aviation and Missile Command
6625-01-121-0510 INTERCHANGEABLE
Lead Set,test
Cross-Reference Index
Part NumberManufacturer
122984D Oshkosh Defense Llc (USA)
122984D Oshkosh Corp (USA)
699 Api Heat Transfer Thermasys Corporation (USA)
699 Thermasys Corporation Dba General Thermo Dynamics Div General Thermodynamics Div
Related Parts
5985-00-083-2782INTERCHANGEABLE
HORN,WAVEGUIDE
699
5975-00-109-5370INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2611
4730-00-270-3901INTERCHANGEABLE
CHUCK,AIR,INFLATING
13229E0854
5110-00-357-5593INTERCHANGEABLE
CHISEL SET,COLD,HAND
4730-00-497-4456INTERCHANGEABLE
NUT,TUBE COUPLING
AS5206W06
5365-00-598-5418INTERCHANGEABLE
BUSHING,NONMETALLIC
699
5945-00-857-8907INTERCHANGEABLE
SOLENOID,ELECTRICAL
71010461-001
2530-00-864-0964INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
F11337
6625-00-893-7165INTERCHANGEABLE
LEAD SET,TEST
10187733-001
6625-01-121-0510INTERCHANGEABLE
LEAD SET,TEST
6625-01-297-5305INTERCHANGEABLE
TEST SET,ELECTRONIC SYSTEMS
699
4730-01-301-4257INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE

Frequently Asked Questions

What is NSN 2520-01-183-0731?

NSN 2520-01-183-0731 is a Cooler,fluid,transmission, manufactured by Oshkosh Defense Llc, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-183-0731?

NSN 2520-01-183-0731 has 4 cross-referenced part numbers: 122984D (Oshkosh Defense Llc), 122984D (Oshkosh Corp), 699 (Api Heat Transfer Thermasys Corporation), 699 (Thermasys Corporation Dba General Thermo Dynamics Div General Thermodynamics Div).

What NSN replaces 2520-01-183-0731?

There are 12 known substitutes for 2520-01-183-0731: 5985-00-083-2782, 5975-00-109-5370, 4730-00-270-3901 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 122984D?

Key specifications for 122984D: Material: STEEL PLATES; Height: 40.000 INCHES NOMINAL IN; Style Designator: UPRIGHT STRAIGHT FINNED TYPE; Heat Transfer Method: INDIRECT. 6 total characteristics are documented in the Federal Logistics Information System.

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