PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2485666Thermostat,flow Control

Perkins Engines Inc · NSN 6685-00-372-4669 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-372-4669 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-372-4669. Primary manufacturer part number: 2485666.
Features
  • Thermostat,flow Control — FSC 6685
  • Opening Temp Rating: 177.0 FAHRENHEIT MINIMUM AND 183.0 FAHRENHEIT MAXIMUM DEGF
  • Operating Temp Rating: 180.0 FAHRENHEIT NOMINAL DEGF
  • Valve Travel Distance: 0.350 INCHES NOMINAL IN
  • Spring Operated Pressure Relief: NOT PROVIDED
  • Thermostat Type: WAX PELLET
  • Largest Outside Diameter: 2.120 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
  • 13 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermostat,flow Control, cataloged under National Stock Number 6685-00-372-4669, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Perkins Engines Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 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
NSN6685-00-372-4669
Primary Part Number2485666
Item NameThermostat,flow Control
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerPerkins Engines Inc
StatusCANCELLED
Opening Temp Rating177.0 FAHRENHEIT MINIMUM AND 183.0 FAHRENHEIT MAXIMUM DEGF
Operating Temp Rating180.0 FAHRENHEIT NOMINAL DEGF
Valve Travel Distance0.350 INCHES NOMINAL IN
Spring Operated Pressure ReliefNOT PROVIDED
Thermostat TypeWAX PELLET
Largest Outside Diameter2.120 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5365-00-517-5262033036 INTERCHANGEABLE
Shim
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5945-00-615-10991572374 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5940-00-948-968613216E6191-1 INTERCHANGEABLE
Terminal,quick Disconnect
Cecom Lr Center
5999-01-135-7047131-1215-00 INTERCHANGEABLE
Contact,electrical
Tektronix, Inc.
6685-01-205-0308337645 INTERCHANGEABLE
Thermostat,flow Control
Mitsubishi Caterpillar Forklift America, Inc
2940-01-318-7219151570 INTERCHANGEABLE
Filter Element,intake Air Cleane
Moxy Trucks of America Llc
Cross-Reference Index
Part NumberManufacturer
2485666 PRIMARY Perkins Engines Inc (USA)
704-27-82 Standard-Thomson Corporation (USA)
24856661446-165-M91 Massey-Ferguson Inc North American Parts Opn Div (USA)
151570 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
1853313M91 Massey-Ferguson Inc (USA)
2485666 H20 Tank Inc U S Motors Div (USA)
2485648 Perkins Engines Inc (USA)
1572374 General Motors Corp AC-Delco Div Government Order Dept (USA)
151570 Hyster-Yale Group, Inc. (USA)
4F800-063 Standard-Thomson Corporation (USA)
D27-99-20 Air-a-Plane Corp (USA)
337645 Caterpillar Inc Div Caterpillar Defense (USA)
4-262-82 Standard-Thomson Corporation (USA)
Related Parts
5365-00-517-5262INTERCHANGEABLE
SHIM
033036
5945-00-615-1099INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1572374
5940-00-948-9686INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
13216E6191-1
5999-01-135-7047INTERCHANGEABLE
CONTACT,ELECTRICAL
131-1215-00
6685-01-205-0308INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
337645
2940-01-318-7219INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
151570

Frequently Asked Questions

What is NSN 6685-00-372-4669?

NSN 6685-00-372-4669 is a Thermostat,flow Control, manufactured by Perkins Engines Inc, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-372-4669?

NSN 6685-00-372-4669 has 13 cross-referenced part numbers: 2485666 (Perkins Engines Inc), 704-27-82 (Standard-Thomson Corporation), 24856661446-165-M91 (Massey-Ferguson Inc North American Parts Opn Div), 151570 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), 1853313M91 (Massey-Ferguson Inc) and 8 more.

What NSN replaces 6685-00-372-4669?

There are 6 known substitutes for 6685-00-372-4669: 5365-00-517-5262, 5945-00-615-1099, 5940-00-948-9686 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2485666?

Key specifications for 2485666: Opening Temp Rating: 177.0 FAHRENHEIT MINIMUM AND 183.0 FAHRENHEIT MAXIMUM DEGF; Operating Temp Rating: 180.0 FAHRENHEIT NOMINAL DEGF; Valve Travel Distance: 0.350 INCHES NOMINAL IN; Spring Operated Pressure Relief: NOT PROVIDED. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-372-4669 still in active supply?

NSN 6685-00-372-4669 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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