PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81GNN00RW75YThermometer,indicating,capillary

Ashcroft Inc Dba Heise · NSN 6685-00-007-9593 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-007-9593 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-007-9593. Primary manufacturer part number: 81GNN00RW75Y.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Scale Measurement Range: +400.000 TO 1200.000 DEG FAHRENHEIT
  • Bulb Quantity: 1
  • Bulb Type: FLEXIBLE EXTENSION PLAIN
  • Actuating Medium: GAS
  • Bulb Style: PLAIN BULB W/BENDABLE EXTENSION
  • Pointer/pen Type and Quantity: 1 INDICATING SINGLE AND 1 REFERENCE SINGLE
  • Bulb Tip Length: 8.000 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Meter Case construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-007-9593, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-007-9593
Primary Part Number81GNN00RW75Y
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Scale Measurement Range+400.000 TO 1200.000 DEG FAHRENHEIT
Bulb Quantity1
Bulb TypeFLEXIBLE EXTENSION PLAIN
Actuating MediumGAS
Bulb StylePLAIN BULB W/BENDABLE EXTENSION
Pointer/pen Type and Quantity1 INDICATING SINGLE AND 1 REFERENCE SINGLE
Bulb Tip Length8.000 INCHES NOMINAL IN
Flexible Tube Length800.000 INCHES NOMINAL IN
Active Portion Diameter0.938 INCHES NOMINAL IN
Active Portion Length8.000 INCHES NOMINAL IN
Scale TypeDIAL
Dial Diameter8.500 INCHES NOMINAL IN
Style DesignatorBULB W/O SOCKET
Case Diameter9.906 INCHES NOMINAL IN
MaterialALUMINUM METER CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-147-584181GN-N00U-W40Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-428-878981GK-Y00R-W25Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-469-8891 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-475-223681GN-P00U-W45Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-477-2169 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-491-816641GHV00LA80Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-491-821741GN-P00R-R65Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-491-8220 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-01-262-0036 INTERCHANGEABLE
Thermometer,self-Indicating,gas
6685-01-262-0045 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Cross-Reference Index
Part NumberManufacturer
M27-400 Ashcroft Inc Dba Heise (USA)
81GNN00RW75Y PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-147-5841INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GN-N00U-W40Y
6685-00-428-8789INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GK-Y00R-W25Y
6685-00-469-8891INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-475-2236INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GN-P00U-W45Y
6685-00-477-2169INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-491-8166INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GHV00LA80Y
6685-00-491-8217INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GN-P00R-R65Y
6685-00-491-8220INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-01-262-0036INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,GAS
6685-01-262-0045INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
6685-01-357-9082INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GH-V00R-A70W
6685-01-374-0348INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
41GPY00R050Y

Frequently Asked Questions

What is NSN 6685-00-007-9593?

NSN 6685-00-007-9593 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 6685-00-007-9593?

NSN 6685-00-007-9593 has 2 cross-referenced part numbers: M27-400 (Ashcroft Inc Dba Heise), 81GNN00RW75Y (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-007-9593?

There are 12 known substitutes for 6685-00-007-9593: 6685-00-147-5841, 6685-00-428-8789, 6685-00-469-8891 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 81GNN00RW75Y?

Key specifications for 81GNN00RW75Y: Scale Measurement Range: +400.000 TO 1200.000 DEG FAHRENHEIT; Bulb Quantity: 1; Bulb Type: FLEXIBLE EXTENSION PLAIN; Actuating Medium: GAS. 16 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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