PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41GZ-ZZZR-Z25YThermometer,indicating,capillary

Ashcroft Inc Dba Heise · NSN 6685-00-464-6168 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-464-6168 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-464-6168. Primary manufacturer part number: 41GZ-ZZZR-Z25Y.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Dial Diameter: 4.500 INCHES NOMINAL IN
  • Actuating Medium: GAS
  • Flexible Tube Length: 300.000 INCHES NOMINAL IN
  • Bulb Style: PLAIN BULB W/BENDABLE EXTENSION
  • Case Diameter: 5.594 INCHES NOMINAL IN
  • Material: ALUMINUM METER CASE
  • Style Designator: BULB W/O SOCKET
Applications
  • Applications requiring Aluminum Meter Case construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-464-6168, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-464-6168
Primary Part Number41GZ-ZZZR-Z25Y
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Dial Diameter4.500 INCHES NOMINAL IN
Actuating MediumGAS
Flexible Tube Length300.000 INCHES NOMINAL IN
Bulb StylePLAIN BULB W/BENDABLE EXTENSION
Case Diameter5.594 INCHES NOMINAL IN
MaterialALUMINUM METER CASE
Style DesignatorBULB W/O SOCKET
MaterialSTEEL CORROSION RESISTING BULB
Extension Neck Length37.000 INCHES NOMINAL IN
Scale Inscription/background ColorBLACK MARKING ON YELLOW BACKGROUND
Active Portion Diameter0.975 INCHES NOMINAL IN
Indicator Connection MethodFLEXIBLE TUBE
Bulb Connection TypeINTEGRAL FLANGE
Scale Smallest Increment5.0 DEG FAHRENHEIT
Bulb Tip Length3.000 INCHES NOMINAL IN
Bulb Quantity1
Scale Measurement Range+20.000 TO 220.000 DEG FAHRENHEIT
Active Portion Length3.000 INCHES NOMINAL IN
Case TypeDUSTPROOF
Bulb Overall Length40.000 INCHES NOMINAL IN
Bulb TypePLAIN RIGID
Pointer/pen Type and Quantity1 INDICATING SINGLE AND 1 REFERENCE SINGLE
Scale TypeCONCENTRIC DIAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6685-00-466-855741GX-Z00R-X25Y INTERCHANGEABLE
Thermometer,self-Indicating
Surfware Inc. Dba Surfcam
Cross-Reference Index
Part NumberManufacturer
41GZ-ZZZR-Z25Y PRIMARY Ashcroft Inc Dba Heise (USA)
M27-400M0D Weksler Glass Thermometer Corp (USA)
41GX-Z00R-X25Y Weksler Glass Thermometer Corp (USA)
Related Parts
6685-00-466-8557INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
41GX-Z00R-X25Y

Frequently Asked Questions

What is NSN 6685-00-464-6168?

NSN 6685-00-464-6168 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 6685-00-464-6168?

NSN 6685-00-464-6168 has 3 cross-referenced part numbers: 41GZ-ZZZR-Z25Y (Ashcroft Inc Dba Heise), M27-400M0D (Weksler Glass Thermometer Corp), 41GX-Z00R-X25Y (Weksler Glass Thermometer Corp).

What NSN replaces 6685-00-464-6168?

There is 1 known substitute for 6685-00-464-6168: 6685-00-466-8557. Verify interchangeability with system specifications before substitution.

What are the specifications of 41GZ-ZZZR-Z25Y?

Key specifications for 41GZ-ZZZR-Z25Y: Dial Diameter: 4.500 INCHES NOMINAL IN; Actuating Medium: GAS; Flexible Tube Length: 300.000 INCHES NOMINAL IN; Bulb Style: PLAIN BULB W/BENDABLE EXTENSION. 23 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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