PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7531600Thermostat,flow Control

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 6685-00-753-1600 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-753-1600 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-753-1600. Primary manufacturer part number: 7531600.
Features
  • Thermostat,flow Control — FSC 6685
  • Flow Control Device: BY-PASS
  • Opening Temp Rating: 170.0 FAHRENHEIT MINIMUM AND 175.0 FAHRENHEIT MAXIMUM DEGF
  • Thermostat Type: BELLOWS
  • Spring Operated Pressure Relief: NOT PROVIDED
  • Largest Outside Diameter: 2.125 INCHES NOMINAL IN
  • Valve Travel Distance: 0.219 INCHES NOMINAL IN
  • Usage Design: REGULATE TEMPERATURE OF ENGINE HEATER
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermostat,flow Control, cataloged under National Stock Number 6685-00-753-1600, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-753-1600
Primary Part Number7531600
Item NameThermostat,flow Control
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Flow Control DeviceBY-PASS
Opening Temp Rating170.0 FAHRENHEIT MINIMUM AND 175.0 FAHRENHEIT MAXIMUM DEGF
Thermostat TypeBELLOWS
Spring Operated Pressure ReliefNOT PROVIDED
Largest Outside Diameter2.125 INCHES NOMINAL IN
Valve Travel Distance0.219 INCHES NOMINAL IN
Usage DesignREGULATE TEMPERATURE OF ENGINE HEATER
Operating Temp Rating190.0 FAHRENHEIT MINIMUM AND 195.0 FAHRENHEIT MAXIMUM DEGF
Mounting MethodFLANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-645-710420330 INTERCHANGEABLE
Transformer,power Autotransforme
Raytheon Company Dba Raytheon
4120-00-884-824167A81D2 INTERCHANGEABLE
Air Conditioner
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
7531600 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
3122285 General Motors Llc Dba General Motors Llc (USA)
A3871 PRIMARY Dcm Manufacturing, Inc. (USA)
3122285 General Motors Corp (USA)
3122285 General Motors Corp Harrison Radiator Div (USA)
Related Parts
5950-00-645-7104INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
20330
4120-00-884-8241INTERCHANGEABLE
AIR CONDITIONER
67A81D2

Frequently Asked Questions

What is NSN 6685-00-753-1600?

NSN 6685-00-753-1600 is a Thermostat,flow Control, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-753-1600?

NSN 6685-00-753-1600 has 5 cross-referenced part numbers: 7531600 (U S Army Tank Automotive Command Amsta-Im-Mm), 3122285 (General Motors Llc Dba General Motors Llc), A3871 (Dcm Manufacturing, Inc.), 3122285 (General Motors Corp), 3122285 (General Motors Corp Harrison Radiator Div).

What NSN replaces 6685-00-753-1600?

There are 2 known substitutes for 6685-00-753-1600: 5950-00-645-7104, 4120-00-884-8241. Verify interchangeability with system specifications before substitution.

What are the specifications of 7531600?

Key specifications for 7531600: Flow Control Device: BY-PASS; Opening Temp Rating: 170.0 FAHRENHEIT MINIMUM AND 175.0 FAHRENHEIT MAXIMUM DEGF; Thermostat Type: BELLOWS; Spring Operated Pressure Relief: NOT PROVIDED. 10 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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