PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RTE-P-8-4TWThermocouple,immersion

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6685-01-393-9027 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-393-9027 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-393-9027. Primary manufacturer part number: RTE-P-8-4TW.
Features
  • Thermocouple,immersion — FSC 6685
  • Unit Type: PROTECTIVE TUBE
  • 3 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermocouple,immersion, cataloged under National Stock Number 6685-01-393-9027, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-01-393-9027
Primary Part NumberRTE-P-8-4TW
Item NameThermocouple,immersion
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Unit TypePROTECTIVE TUBE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5360-00-514-21262-17-006 INTERCHANGEABLE
Spring,helical,compression
Tactair Fluid Controls Inc Western Hydraulics Div
6685-00-574-8877 INTERCHANGEABLE
Thermocouple Assembly
5365-00-662-2664217006 INTERCHANGEABLE
Spacer,sleeve
The Slabe Machine Products Llc
4420-01-050-6908217006 INTERCHANGEABLE
Core Assembly,fluid Cooler
Cummins Inc.
6695-01-059-947421-7006 INTERCHANGEABLE
Smoke Test Kit
Bacharach, Inc.
6685-01-064-5525 INTERCHANGEABLE
Thermocouple Assembly
6685-01-077-5259 INTERCHANGEABLE
Sensor,ambient Temperature
6685-01-119-5560 INTERCHANGEABLE
Transmitter,temperature,electric
6685-01-148-9914 INTERCHANGEABLE
Pyrometer,recording
6685-01-152-4156 INTERCHANGEABLE
Thermocouple,immersion
Cross-Reference Index
Part NumberManufacturer
RTE-P-8-4TW Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-T-24388 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
21700-6 Rdf Corporation (USA)
Related Parts
5360-00-514-2126INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2-17-006
6685-00-574-8877INTERCHANGEABLE
THERMOCOUPLE ASSEMBLY
5365-00-662-2664INTERCHANGEABLE
SPACER,SLEEVE
217006
4420-01-050-6908INTERCHANGEABLE
CORE ASSEMBLY,FLUID COOLER
217006
6695-01-059-9474INTERCHANGEABLE
SMOKE TEST KIT
21-7006
6685-01-064-5525INTERCHANGEABLE
THERMOCOUPLE ASSEMBLY
6685-01-077-5259INTERCHANGEABLE
SENSOR,AMBIENT TEMPERATURE
6685-01-119-5560INTERCHANGEABLE
TRANSMITTER,TEMPERATURE,ELECTRIC
6685-01-148-9914INTERCHANGEABLE
PYROMETER,RECORDING
6685-01-152-4156INTERCHANGEABLE
THERMOCOUPLE,IMMERSION
6685-01-212-8046INTERCHANGEABLE
THERMOCOUPLE ASSEMBLY
6685-01-336-5072INTERCHANGEABLE
THERMOCOUPLE,HEATING ELEMENT

Frequently Asked Questions

What is NSN 6685-01-393-9027?

NSN 6685-01-393-9027 is a Thermocouple,immersion, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-01-393-9027?

NSN 6685-01-393-9027 has 3 cross-referenced part numbers: RTE-P-8-4TW (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-T-24388 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 21700-6 (Rdf Corporation).

What NSN replaces 6685-01-393-9027?

There are 12 known substitutes for 6685-01-393-9027: 5360-00-514-2126, 6685-00-574-8877, 5365-00-662-2664 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RTE-P-8-4TW?

Key specifications for RTE-P-8-4TW: Unit Type: PROTECTIVE TUBE. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-01-393-9027 still in active supply?

NSN 6685-01-393-9027 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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