PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41GK-Y00R-A20YThermometer,indicating,capillary

Ashcroft Inc Dba Heise · NSN 6685-00-483-8602 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-483-8602 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-483-8602. Primary manufacturer part number: 41GK-Y00R-A20Y.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Scale Inscription/background Color: BLACK MARKING ON YELLOW BACKGROUNDBLACK MARKING ON YELLOW BACKGROUND
  • Bulb Quantity: 1
  • Flexible Tube Length: 240.000 INCHES NOMINAL IN
  • Scale Type: CONCENTRIC DIALCONCENTRIC DIAL
  • Pointer/pen Type and Quantity: 1 INDICATING SINGLE AND 1 INDICATING SINGLE AND 1 REFERENCE SINGLE1 REFERENCE SINGLE
  • Material: STEEL CORROSION RESISTING BULB
  • Material: ALUMINUM METER CASE
Applications
  • Applications requiring Steel Corrosion Resisting Bulb construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-483-8602, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN6685-00-483-8602
Primary Part Number41GK-Y00R-A20Y
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Scale Inscription/background ColorBLACK MARKING ON YELLOW BACKGROUNDBLACK MARKING ON YELLOW BACKGROUND
Bulb Quantity1
Flexible Tube Length240.000 INCHES NOMINAL IN
Scale TypeCONCENTRIC DIALCONCENTRIC DIAL
Pointer/pen Type and Quantity1 INDICATING SINGLE AND 1 INDICATING SINGLE AND 1 REFERENCE SINGLE1 REFERENCE SINGLE
MaterialSTEEL CORROSION RESISTING BULB
MaterialALUMINUM METER CASE
Style DesignatorBULB W/O SOCKET
Bulb Overall Length6.000 INCHES NOMINAL6.000 INCHES NOMINAL IN
Scale Measurement Range-40.000 TO 180.000 DEG FAHRENHEIT-40.000 TO 180.000 DEG FAHRENHEIT
Indicator Connection MethodFLEXIBLE TUBE
Actuating MediumGASGAS
Case Diameter5.875 INCHES NOMINAL IN
Bulb Tip Length6.000 INCHES NOMINAL6.000 INCHES NOMINAL IN
Bulb StylePLAIN BULB
Dial Diameter4.500 INCHES NOMINAL IN
Scale Smallest Increment2.0 DEG FAHRENHEIT
Bulb Connection TypeUNION
Active Portion Length3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
Bulb TypePLAIN RIGID
Extension Neck Length2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN
Active Portion Diameter0.933 INCHES NOMINAL0.933 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
6685-00-522-882341GK-Y00R-A10Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-522-8834 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-522-8835 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-522-8843 INTERCHANGEABLE
Thermometer,indicating,capillary
Cross-Reference Index
Part NumberManufacturer
41GK-Y00R-A20Y PRIMARY Ashcroft Inc Dba Heise (USA)
M27-400REVC 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
6685-00-522-8823INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00R-A10Y
6685-00-522-8834INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-522-8835INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-522-8843INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY

Frequently Asked Questions

What is NSN 6685-00-483-8602?

NSN 6685-00-483-8602 is a Thermometer,indicating,capillary, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-483-8602?

NSN 6685-00-483-8602 has 2 cross-referenced part numbers: 41GK-Y00R-A20Y (Ashcroft Inc Dba Heise), M27-400REVC (Weksler Glass Thermometer Corp).

What NSN replaces 6685-00-483-8602?

There are 10 known substitutes for 6685-00-483-8602: 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 41GK-Y00R-A20Y?

Key specifications for 41GK-Y00R-A20Y: Scale Inscription/background Color: BLACK MARKING ON YELLOW BACKGROUNDBLACK MARKING ON YELLOW BACKGROUND; Bulb Quantity: 1; Flexible Tube Length: 240.000 INCHES NOMINAL IN; Scale Type: CONCENTRIC DIALCONCENTRIC DIAL. 22 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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