PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65CThermometer,self-Indicating

Weksler Glass Thermometer Corp · NSN 6685-00-994-1027 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-994-1027 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-994-1027. Primary manufacturer part number: 65C.
Features
  • Thermometer,self-Indicating — FSC 6685
  • Scale Measurement Range: +50.000 TO 80.000 DEG CELSIUS+50.000 TO 80.000 DEG CELSIUS
  • Style Designator: IMMERSION RING TOP
  • Actuating Medium: MERCURYMERCURY
  • Scale Type: ETCHED STEMETCHED STEM
  • Design Type: FLUCTUATINGFLUCTUATING
  • Material: GLASS STEM LIQUID IN GLASS
  • Securing Device Type: RINGRING
Applications
  • Applications requiring Glass Stem Liquid in Glass construction
General Description

The Thermometer,self-Indicating, cataloged under National Stock Number 6685-00-994-1027, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Weksler Glass Thermometer Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN6685-00-994-1027
Primary Part Number65C
Item NameThermometer,self-Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerWeksler Glass Thermometer Corp
StatusCANCELLED
Scale Measurement Range+50.000 TO 80.000 DEG CELSIUS+50.000 TO 80.000 DEG CELSIUS
Style DesignatorIMMERSION RING TOP
Actuating MediumMERCURYMERCURY
Scale TypeETCHED STEMETCHED STEM
Design TypeFLUCTUATINGFLUCTUATING
MaterialGLASS STEM LIQUID IN GLASS
Securing Device TypeRINGRING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5998-00-170-6721 INTERCHANGEABLE
Electronic Components Assembly
5120-00-204-053021003 INTERCHANGEABLE
Face,hammer,inserted
Garland Manufacturing Co Dba Garland Manufacturing Co Div Uhmw Polyethylene Division
5325-00-276-42487431654-118 INTERCHANGEABLE
Grommet,nonmetallic
Westinghouse Electric Corp
2805-00-391-321021003 INTERCHANGEABLE
Ring,piston
Briggs and Stratton Corp
5960-00-521-022121003 INTERCHANGEABLE
Retainer,electron,t
Leica Inc Surveying and Photogrammetry Systems Div
5325-00-597-51762100-3 INTERCHANGEABLE
Insert,screw Thread
Nafco Usa Llc
5950-00-787-7044 INTERCHANGEABLE
Coil,radio Frequency
5325-00-803-7304 INTERCHANGEABLE
Ring,retaining
3455-00-975-4786 INTERCHANGEABLE
Reamer,machine
5940-00-983-6114 INTERCHANGEABLE
Terminal Board
Cross-Reference Index
Part NumberManufacturer
65C PRIMARY Weksler Glass Thermometer Corp (USA)
7912276-4 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
ASTM 65C Weksler Glass Thermometer Corp (USA)
21003 Tycos Instruments Inc a Welch Allyn Co (USA)
Related Parts
5998-00-170-6721INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5120-00-204-0530INTERCHANGEABLE
FACE,HAMMER,INSERTED
21003
5325-00-276-4248INTERCHANGEABLE
GROMMET,NONMETALLIC
7431654-118
2805-00-391-3210INTERCHANGEABLE
RING,PISTON
21003
5960-00-521-0221INTERCHANGEABLE
RETAINER,ELECTRON,T
21003
5325-00-597-5176INTERCHANGEABLE
INSERT,SCREW THREAD
2100-3
5950-00-787-7044INTERCHANGEABLE
COIL,RADIO FREQUENCY
5325-00-803-7304INTERCHANGEABLE
RING,RETAINING
3455-00-975-4786INTERCHANGEABLE
REAMER,MACHINE
5940-00-983-6114INTERCHANGEABLE
TERMINAL BOARD
4130-01-017-3319INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
456295
5961-01-249-4469INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
21003

Frequently Asked Questions

What is NSN 6685-00-994-1027?

NSN 6685-00-994-1027 is a Thermometer,self-Indicating, manufactured by Weksler Glass Thermometer Corp, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-994-1027?

NSN 6685-00-994-1027 has 4 cross-referenced part numbers: 65C (Weksler Glass Thermometer Corp), 7912276-4 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), ASTM 65C (Weksler Glass Thermometer Corp), 21003 (Tycos Instruments Inc a Welch Allyn Co).

What NSN replaces 6685-00-994-1027?

There are 12 known substitutes for 6685-00-994-1027: 5998-00-170-6721, 5120-00-204-0530, 5325-00-276-4248 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 65C?

Key specifications for 65C: Scale Measurement Range: +50.000 TO 80.000 DEG CELSIUS+50.000 TO 80.000 DEG CELSIUS; Style Designator: IMMERSION RING TOP; Actuating Medium: MERCURYMERCURY; Scale Type: ETCHED STEMETCHED STEM. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-994-1027 still in active supply?

NSN 6685-00-994-1027 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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