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6685PL1621310 — Technical Data Sheet

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JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The THERMOCOUPLE,IMMERSION is a JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX industrial component. Key specifications include MATERIAL: NICKEL ALLOY THERMOCOUPLE WIRE, OVERALL LENGTH: 7.687 INCHES MINIMUM AND 7.891 INCHES MAXIMUM IN, IMMERSION LENGTH: 2.557 INCHES MINIMUM AND 2.567 INCHES MAXIMUM IN, SPECIAL FEATURES: SPRING LOADED THERMOCOUPLE; ALUMINIDE COATED; HAS TWO TYPE K THERMOCOUPLES; MOUNTING HOLES IN FLANGE ARE 0.220 IN DIA IN, OPERATING TEMP RANGE: +1000.0 TO 1975.0 FAHRENHEIT DEGF, END ITEM IDENTIFICATION: F-100 ENGINES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 6685-01-518-0319, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
6685PL1621310
NSN: 6685-01-518-0319
FSC: 6685
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
MATERIALNICKEL ALLOY THERMOCOUPLE WIRE
OVERALL LENGTH7.687 INCHES MINIMUM AND 7.891 INCHES MAXIMUM IN
IMMERSION LENGTH2.557 INCHES MINIMUM AND 2.567 INCHES MAXIMUM IN
SPECIAL FEATURESSPRING LOADED THERMOCOUPLE; ALUMINIDE COATED; HAS TWO TYPE K THERMOCOUPLES; MOUNTING HOLES IN FLANGE ARE 0.220 IN DIA IN
OPERATING TEMP RANGE+1000.0 TO 1975.0 FAHRENHEIT DEGF
FUNCTIONAL DESCRIPTIONTHERMOCOUPLE IS A DUAL ELEMENT IMMERSION THERMOCOUPLE DESIGNED FOR USE IN THE PRATT & WHITNEY F 100 ENGINES, LOCATION IS THE FRONT TURBINE INLET
END ITEM IDENTIFICATIONF-100 ENGINES
TERMINAL TYPE AND QUANTITY4 TERMINAL BLOCK W/SCREWS
MOUNTING BOLT CIRCLE DIAMETER2.140 INCHES MINIMUM AND 2.160 INCHES MAXIMUM IN
REFERENCE DATA AND LITERATUREPRATT & WHITNEY DRAWING 4087911 AND ROSEMOUNT DRAWING 6837
MOUNTING FACILITY TYPE AND QUANTITY1 FLANGE
PART NAME ASSIGNED BY CONTROLLING AGENCYTHERMOCOUPLE FTIT
NSN6685-01-518-0319
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX THERMOCOUPLE,IMMERSION TITLE COMPONENT PN 6685PL1621310 MFR JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX THERMOCOUPLE,IMMERSION
KEY FEATURES
•
MATERIAL: NICKEL ALLOY THERMOCOUPLE WIRE
•
TERMINAL TYPE AND QUANTITY: 4 TERMINAL BLOCK W/SCREWS
•
REFERENCE DATA AND LITERATURE: PRATT & WHITNEY DRAWING 4087911 AND ROSEMOUNT DRAWING 6837
•
MOUNTING BOLT CIRCLE DIAMETER: 2.140 INCHES MINIMUM AND 2.160 INCHES MAXIMUM IN
•
OPERATING TEMP RANGE: +1000.0 TO 1975.0 FAHRENHEIT DEGF
•
FUNCTIONAL DESCRIPTION: THERMOCOUPLE IS A DUAL ELEMENT IMMERSION THERMOCOUPLE DESIGNED FOR USE IN THE PRATT & WHITNEY F 100 ENGINES, LOCATION IS THE FRONT TURBINE INLET
TECHNICAL CHARACTERISTICS
MATERIALNICKEL ALLOY THERMOCOUPLE WIRE
TERMINAL TYPE AND QUANTITY4 TERMINAL BLOCK W/SCREWS
REFERENCE DATA AND LITERATUREPRATT & WHITNEY DRAWING 4087911 AND ROSEMOUNT DRAWING 6837
MOUNTING BOLT CIRCLE DIAMETER2.140 INCHES MINIMUM AND 2.160 INCHES MAXIMUM IN
OPERATING TEMP RANGE+1000.0 TO 1975.0 FAHRENHEIT DEGF
SPECIAL FEATURESSPRING LOADED THERMOCOUPLE; ALUMINIDE COATED; HAS TWO TYPE K THERMOCOUPLES; MOUNTING HOLES IN FLANGE ARE 0.220 IN DIA IN
FUNCTIONAL DESCRIPTIONTHERMOCOUPLE IS A DUAL ELEMENT IMMERSION THERMOCOUPLE DESIGNED FOR USE IN THE PRATT & WHITNEY F 100 ENGINES, LOCATION IS THE FRONT TURBINE INLET
OVERALL LENGTH7.687 INCHES MINIMUM AND 7.891 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYTHERMOCOUPLE FTIT
IMMERSION LENGTH2.557 INCHES MINIMUM AND 2.567 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
C5DE-9350-BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6837InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LNPS REPCOU 6837InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
KK-P-91 TY1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
KK-P-91InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S-610-AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6685PL1621310?
6685PL1621310 is a THERMOCOUPLE,IMMERSION manufactured by JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX.
What parts can replace 6685PL1621310?
There are 13 known substitutes for 6685PL1621310: C5DE-9350-B, 6837, LNPS REPCOU 6837 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6685PL1621310?
6685PL1621310 is cataloged in the Federal Logistics Information System under NSN 6685-01-518-0319. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026