PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-T8478K-51E-000-0630-50/550Thermometer,indicating,capillary

Ashcroft Inc Dba Heise · NSN 6685-00-483-8607 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-483-8607 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-483-8607. Primary manufacturer part number: 45-T8478K-51E-000-0630-50/550.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Actuating Medium: GAS
  • Bulb Quantity: 11
  • Flexible Tube Length: 756.000 INCHES NOMINAL IN
  • Scale Accuracy Rating: 5.0 PCT
  • Scale Inscription/background Color: BLACK MARKING ON YELLOW BACKGROUNDBLACK MARKING ON YELLOW BACKGROUND
  • Extension Neck Length: 2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN
  • Indicator Connection Method: FLEXIBLE TUBE
Applications
  • Applications requiring Steel Corrosion Resisting Bulb construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-483-8607, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-483-8607
Primary Part Number45-T8478K-51E-000-0630-50/550
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Actuating MediumGAS
Bulb Quantity11
Flexible Tube Length756.000 INCHES NOMINAL IN
Scale Accuracy Rating5.0 PCT
Scale Inscription/background ColorBLACK MARKING ON YELLOW BACKGROUNDBLACK MARKING ON YELLOW BACKGROUND
Extension Neck Length2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN
Indicator Connection MethodFLEXIBLE TUBE
Active Portion Diameter0.935 INCHES NOMINAL IN
Bulb Overall Length6.000 INCHES NOMINAL6.000 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING BULB
MaterialPLASTIC METER CASE
Style DesignatorBULB W/O SOCKET
Bulb StylePLAIN BULB
Bulb TypePLAIN RIGID
Active Portion Length3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
Bulb Connection TypeUNION
Bulb Tip Length6.000 INCHES NOMINAL6.000 INCHES NOMINAL IN
Dial Diameter4.500 INCHES NOMINAL IN
Scale TypeCONCENTRIC DIAL
Scale Measurement Range+50.000 TO 550.000 DEG FAHRENHEIT+50.000 TO 550.000 DEG FAHRENHEIT
Pointer/pen Type and Quantity1 INDICATING SINGLE AND 1 REFERENCE SINGLE
Scale Smallest Increment5.0 DEG FAHRENHEIT
Case Diameter3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-115-920681GJ-Y00R-W40Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-453-587241GJ-Y00L-W25Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-453-587781GK-Y00R-W63Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-453-587841GK-Y00L-R10Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-453-588041GJ-Y00R-W40Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-453-588181GJ-Y00R-W25Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-483-860381GK-Y00R-W50Y INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-483-860481GK-Y00R-W45Y INTERCHANGEABLE
Thermometer,indicating,capillary
Weksler Glass Thermometer Corp
6685-00-483-860585-T8478K-54E-000-0350-400/1200 INTERCHANGEABLE
Thermometer,indicating,capillary
Ashcroft Inc Dba Heise
6685-00-488-558581GN-N00R-W40Y INTERCHANGEABLE
No Item Name Available
Weksler Glass Thermometer Corp
Cross-Reference Index
Part NumberManufacturer
45-T8478K-51E-000-0630-50/550 PRIMARY Ashcroft Inc Dba Heise (USA)
M27-196REVP Weksler Glass Thermometer Corp (USA)
41GK-Y00R-L63Y Weksler Glass Thermometer Corp (USA)
Related Parts
6685-00-115-9206INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GJ-Y00R-W40Y
6685-00-453-5872INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GJ-Y00L-W25Y
6685-00-453-5877INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GK-Y00R-W63Y
6685-00-453-5878INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00L-R10Y
6685-00-453-5880INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GJ-Y00R-W40Y
6685-00-453-5881INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GJ-Y00R-W25Y
6685-00-483-8603INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GK-Y00R-W50Y
6685-00-483-8604INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
81GK-Y00R-W45Y
6685-00-483-8605INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
85-T8478K-54E-000-0350-400/1200
6685-00-488-5585INTERCHANGEABLE
NO ITEM NAME AVAILABLE
81GN-N00R-W40Y
6685-00-522-8389INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00R-W30Y
6685-00-522-8394INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
41GK-Y00R-O30Y

Frequently Asked Questions

What is NSN 6685-00-483-8607?

NSN 6685-00-483-8607 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 6685-00-483-8607?

NSN 6685-00-483-8607 has 3 cross-referenced part numbers: 45-T8478K-51E-000-0630-50/550 (Ashcroft Inc Dba Heise), M27-196REVP (Weksler Glass Thermometer Corp), 41GK-Y00R-L63Y (Weksler Glass Thermometer Corp).

What NSN replaces 6685-00-483-8607?

There are 12 known substitutes for 6685-00-483-8607: 6685-00-115-9206, 6685-00-453-5872, 6685-00-453-5877 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-T8478K-51E-000-0630-50/550?

Key specifications for 45-T8478K-51E-000-0630-50/550: Actuating Medium: GAS; Bulb Quantity: 11; Flexible Tube Length: 756.000 INCHES NOMINAL IN; Scale Accuracy Rating: 5.0 PCT. 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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