PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4A313-4Thermostat,flow Control

Standard-Thomson Corporation · NSN 6685-00-215-1997 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-215-1997 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-215-1997. Primary manufacturer part number: 4A313-4.
Features
  • Thermostat,flow Control — FSC 6685
  • Thermostat Type: COIL SPRING BIMETALLIC
  • Largest Outside Diameter: 2.874 INCHES NOMINAL IN
  • FSC Application Data: VEHICULAR ENGINE INSTRUMENTS
  • Mounting Method: FLANGE
  • Valve Travel Distance: 0.375 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Standard-Thomson Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermostat,flow Control, cataloged under National Stock Number 6685-00-215-1997, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Standard-Thomson Corporation. Government technical data includes 5 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-215-1997
Primary Part Number4A313-4
Item NameThermostat,flow Control
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerStandard-Thomson Corporation
StatusACTIVE
Thermostat TypeCOIL SPRING BIMETALLIC
Largest Outside Diameter2.874 INCHES NOMINAL IN
FSC Application DataVEHICULAR ENGINE INSTRUMENTS
Mounting MethodFLANGE
Valve Travel Distance0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6685-00-081-3150356-170 INTERCHANGEABLE
Thermostat,flow Control
Standard-Thomson Corporation
Cross-Reference Index
Part NumberManufacturer
9S9160-00 Mil-Tech Mfg Inc (USA)
9S9160 Caterpillar Inc Div Caterpillar Defense (USA)
4A313-4 PRIMARY Standard-Thomson Corporation (USA)
VD10172 Service Sales of Pittsburgh (USA)
Related Parts
6685-00-081-3150INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
356-170

Frequently Asked Questions

What is NSN 6685-00-215-1997?

NSN 6685-00-215-1997 is a Thermostat,flow Control, manufactured by Standard-Thomson Corporation, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-215-1997?

NSN 6685-00-215-1997 has 4 cross-referenced part numbers: 9S9160-00 (Mil-Tech Mfg Inc), 9S9160 (Caterpillar Inc Div Caterpillar Defense), 4A313-4 (Standard-Thomson Corporation), VD10172 (Service Sales of Pittsburgh).

What NSN replaces 6685-00-215-1997?

There is 1 known substitute for 6685-00-215-1997: 6685-00-081-3150. Verify interchangeability with system specifications before substitution.

What are the specifications of 4A313-4?

Key specifications for 4A313-4: Thermostat Type: COIL SPRING BIMETALLIC; Largest Outside Diameter: 2.874 INCHES NOMINAL IN; FSC Application Data: VEHICULAR ENGINE INSTRUMENTS; Mounting Method: FLANGE. 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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