PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M27-400REVCThermometer,indicating,capillary

Weksler Glass Thermometer Corp · NSN 6685-00-522-8835 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-522-8835 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-522-8835. Primary manufacturer part number: M27-400REVC.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Scale Type: CONCENTRIC DIAL
  • Bulb Type: PLAIN RIGID
  • Dial Diameter: 4.500 INCHES NOMINAL IN
  • Active Portion Length: 3.500 INCHES NOMINAL IN
  • Scale Inscription/background Color: BLACK MARKING ON YELLOW BACKGROUND
  • Scale Smallest Increment: 2.0 DEG FAHRENHEIT
  • Case Type: DUSTPROOF
Applications
  • Applications requiring Steel Corrosion Resisting Bulb construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-522-8835, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-522-8835
Primary Part NumberM27-400REVC
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerWeksler Glass Thermometer Corp
StatusACTIVE
Scale TypeCONCENTRIC DIAL
Bulb TypePLAIN RIGID
Dial Diameter4.500 INCHES NOMINAL IN
Active Portion Length3.500 INCHES NOMINAL IN
Scale Inscription/background ColorBLACK MARKING ON YELLOW BACKGROUND
Scale Smallest Increment2.0 DEG FAHRENHEIT
Case TypeDUSTPROOF
Style DesignatorBULB W/O SOCKET
Nondefinitive Spec/std DataC CLASS
MaterialSTEEL CORROSION RESISTING BULB
MaterialALUMINUM METER CASE
Bulb Quantity1
Bulb Connection TypeUNION
Scale Accuracy Rating1.3 PCT
Extension Neck Length1.000 INCHES NOMINAL IN
Bulb Tip Length3.500 INCHES NOMINAL IN
Indicator Connection MethodFLEXIBLE TUBE
Pointer/pen Type and Quantity1 INDICATING SINGLE AND 1 REFERENCE SINGLE
Scale Measurement Range-40.000 TO 180.000 DEG FAHRENHEIT
Bulb Overall Length4.500 INCHES NOMINAL IN
Active Portion Diameter0.935 INCHES NOMINAL IN
Actuating MediumGAS
Flexible Tube Length360.000 INCHES NOMINAL IN
Bulb StylePLAIN BULB W/BENDABLE EXTENSION
Case Diameter5.593 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6685-00-453-5870 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-453-587941GK-YX0R-F30Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-459-898441GK-Y00R-A60Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-477-2169 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-483-860045-T8478K-54E-000-0600-20-240DEG INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-483-8601 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-483-860241GK-Y00R-A20Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-522-882341GK-Y00R-A10Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-522-8834 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-522-8843 INTERCHANGEABLE
Thermometer,indicating,capillary
Cross-Reference Index
Part NumberManufacturer
M27-400REVC Weksler Glass Thermometer Corp (USA)
MIL-T-19646 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
41GK-Y00U-A30Y Weksler Glass Thermometer Corp (USA)
M19646-C418D430 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
45-T8478K-54E-350-0300-040-180F Ashcroft Inc Dba Heise (USA)
41GK-YX0R-A30Y Weksler Glass Thermometer Corp (USA)
Related Parts
6685-00-453-5870INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-453-5879INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-YX0R-F30Y
6685-00-459-8984INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00R-A60Y
6685-00-477-2169INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-483-8600INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
45-T8478K-54E-000-0600-20-240DEG
6685-00-483-8601INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-483-8602INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00R-A20Y
6685-00-522-8823INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00R-A10Y
6685-00-522-8834INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-522-8843INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY

Frequently Asked Questions

What is NSN 6685-00-522-8835?

NSN 6685-00-522-8835 is a Thermometer,indicating,capillary, manufactured by Weksler Glass Thermometer Corp, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-522-8835?

NSN 6685-00-522-8835 has 6 cross-referenced part numbers: M27-400REVC (Weksler Glass Thermometer Corp), MIL-T-19646 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 41GK-Y00U-A30Y (Weksler Glass Thermometer Corp), M19646-C418D430 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 45-T8478K-54E-350-0300-040-180F (Ashcroft Inc Dba Heise) and 1 more.

What NSN replaces 6685-00-522-8835?

There are 10 known substitutes for 6685-00-522-8835: 6685-00-453-5870, 6685-00-453-5879, 6685-00-459-8984 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M27-400REVC?

Key specifications for M27-400REVC: Scale Type: CONCENTRIC DIAL; Bulb Type: PLAIN RIGID; Dial Diameter: 4.500 INCHES NOMINAL IN; Active Portion Length: 3.500 INCHES NOMINAL IN. 25 total characteristics are documented in the Federal Logistics Information System.

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