PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1854090Thermostat,cooler

Delphi Powertrain Systems, Llc · NSN 2990-01-122-6328 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-122-6328 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-122-6328. Primary manufacturer part number: 1854090.
Features
  • Thermostat,cooler — FSC 2990
  • 5 verified cross-references
  • Primary manufacturer: Delphi Powertrain Systems, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermostat,cooler, cataloged under National Stock Number 2990-01-122-6328, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Delphi Powertrain Systems, Llc. This item has 5 commercial cross-references from 5 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
NSN2990-01-122-6328
Primary Part Number1854090
Item NameThermostat,cooler
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerDelphi Powertrain Systems, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1315-00-028-4672 INTERCHANGEABLE
Cartridge,75 Millimeter
1560-00-123-275740501 INTERCHANGEABLE
Horn,aileron
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5815-00-136-0449 INTERCHANGEABLE
Guide,tape
4730-00-277-2169 INTERCHANGEABLE
Bushing,pipe
3020-00-288-5598 INTERCHANGEABLE
Gear,bevel
5360-00-464-731440-501 INTERCHANGEABLE
Spring,helical,compression
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
4320-00-499-344640501 INTERCHANGEABLE
Pump,rotary
Cummins Inc.
5330-01-042-88784050-1 INTERCHANGEABLE
Gasket
Wisco Products Inc
4730-01-194-6817 INTERCHANGEABLE
Spud,water Closet
6645-01-285-94314050-1 INTERCHANGEABLE
Balance Assembly
Wakmann Watch Company Inc
Cross-Reference Index
Part NumberManufacturer
1854090 PRIMARY Delphi Powertrain Systems, Llc (USA)
40501 Jasmin Defense Industrial Depot (USA)
40501 Grove R B Inc (USA)
40501 Sabre Engines Ltd (GBR)
40501 Classic Restoration and Sales (USA)
Related Parts
1315-00-028-4672INTERCHANGEABLE
CARTRIDGE,75 MILLIMETER
1560-00-123-2757INTERCHANGEABLE
HORN,AILERON
40501
5815-00-136-0449INTERCHANGEABLE
GUIDE,TAPE
4730-00-277-2169INTERCHANGEABLE
BUSHING,PIPE
3020-00-288-5598INTERCHANGEABLE
GEAR,BEVEL
5360-00-464-7314INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
40-501
4320-00-499-3446INTERCHANGEABLE
PUMP,ROTARY
40501
5330-01-042-8878INTERCHANGEABLE
GASKET
4050-1
4730-01-194-6817INTERCHANGEABLE
SPUD,WATER CLOSET
6645-01-285-9431INTERCHANGEABLE
BALANCE ASSEMBLY
4050-1
3040-01-323-5049INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
40501
4510-01-340-2369INTERCHANGEABLE
SPUD,PLUMBING
R8923-1212-RB

Frequently Asked Questions

What is NSN 2990-01-122-6328?

NSN 2990-01-122-6328 is a Thermostat,cooler, manufactured by Delphi Powertrain Systems, Llc, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-122-6328?

NSN 2990-01-122-6328 has 5 cross-referenced part numbers: 1854090 (Delphi Powertrain Systems, Llc), 40501 (Jasmin Defense Industrial Depot), 40501 (Grove R B Inc), 40501 (Sabre Engines Ltd), 40501 (Classic Restoration and Sales).

What NSN replaces 2990-01-122-6328?

There are 12 known substitutes for 2990-01-122-6328: 1315-00-028-4672, 1560-00-123-2757, 5815-00-136-0449 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1854090?

Key specifications for 1854090: End Item Identification: 1940-01-105-5728. 1 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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