PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21238Thermocouple

Simpson Electric Company, Inc. · NSN 6685-01-077-5695 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-077-5695 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-077-5695. Primary manufacturer part number: 21238.
Features
  • Thermocouple — FSC 6685
  • 4 verified cross-references
  • Primary manufacturer: Simpson Electric Company, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermocouple, cataloged under National Stock Number 6685-01-077-5695, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Simpson Electric Company, Inc.. This item has 4 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: Active.

Catalog Facts
Item NameThermocouple
FSC / FSG6685 — No Item Name Available (FSG 66)
ManufacturersSimpson Electric Company, Inc. (CAGE 55026); Standard Motor Products Inc Champ Service Line Div (CAGE 2Y551)
Technical Specifications
ParameterValue
NSN6685-01-077-5695
Primary Part Number21238
Item NameThermocouple
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5910-00-010-8720 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5310-00-167-0816 INTERCHANGEABLE
Washer,flat
5110-00-260-1668 INTERCHANGEABLE
Reamer,hand
2995-00-441-983001-87 INTERCHANGEABLE
Seal
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5110-00-540-5782 INTERCHANGEABLE
File,hand
4010-00-994-236900187 INTERCHANGEABLE
Chain Assembly,single Leg
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5330-01-171-800200187 INTERCHANGEABLE
Gasket
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
5310-01-238-065021238 INTERCHANGEABLE
Washer,lock
Industrial Technologies and Services Llc
6550-01-271-7646R21238 INTERCHANGEABLE
Ninhydrin Solution
Remel Inc.
5120-01-297-7101EX212-3/8 INTERCHANGEABLE
Bit,screwdriver
Amsco Products Camcar Div Textron Inc
Cross-Reference Index
Part NumberManufacturer
0187 Simpson Electric Company, Inc. (USA)
21238 PRIMARY Simpson Electric Company, Inc. (USA)
00187 PRIMARY Simpson Electric Company, Inc. (USA)
00187 Standard Motor Products Inc Champ Service Line Div (USA)
Related Parts
5910-00-010-8720INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5310-00-167-0816INTERCHANGEABLE
WASHER,FLAT
5110-00-260-1668INTERCHANGEABLE
REAMER,HAND
2995-00-441-9830INTERCHANGEABLE
SEAL
01-87
5110-00-540-5782INTERCHANGEABLE
FILE,HAND
4010-00-994-2369INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
00187
5330-01-171-8002INTERCHANGEABLE
GASKET
00187
5310-01-238-0650INTERCHANGEABLE
WASHER,LOCK
21238
6550-01-271-7646INTERCHANGEABLE
NINHYDRIN SOLUTION
R21238
5120-01-297-7101INTERCHANGEABLE
BIT,SCREWDRIVER
EX212-3/8
5985-01-341-8441INTERCHANGEABLE
COUPLER,DIRECTIONAL
405577
4810-01-478-7077INTERCHANGEABLE
VALVE,SOLENOID
EDG-0187

Frequently Asked Questions

What is NSN 6685-01-077-5695?

NSN 6685-01-077-5695 is a Thermocouple, manufactured by Simpson Electric Company, Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-077-5695?

NSN 6685-01-077-5695 has 4 cross-referenced part numbers: 0187 (Simpson Electric Company, Inc.), 21238 (Simpson Electric Company, Inc.), 00187 (Simpson Electric Company, Inc.), 00187 (Standard Motor Products Inc Champ Service Line Div).

What NSN replaces 6685-01-077-5695?

There are 12 known substitutes for 6685-01-077-5695: 5910-00-010-8720, 5310-00-167-0816, 5110-00-260-1668 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com