PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-EI-60R-040-50/550 DEG FThermometer,self-Indicating,bime

Ashcroft Inc Dba Heise · NSN 6685-00-865-7431 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-865-7431 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-865-7431. Primary manufacturer part number: 30-EI-60R-040-50/550 DEG F.
Features
  • Thermometer,self-Indicating,bime — FSC 6685
  • Stem Length: 4.000 INCHES NOMINAL IN
  • Scale Smallest Increment: 5.0 DEG FAHRENHEIT
  • Features Provided: PROTECTIVE GLASS/PLASTIC
  • Material: STEEL CORROSION RESISTING METER CASE
  • Style Designator: STRAIGHT FORM, HORIZONTAL DIAL
  • Scale Measurement Range: +50.000 TO 550.000 DEG FAHRENHEIT
  • Design Type: FLUCTUATING
Applications
  • Applications requiring Steel Corrosion Resisting Meter Case construction
General Description

The Thermometer,self-Indicating,bime, cataloged under National Stock Number 6685-00-865-7431, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-865-7431
Primary Part Number30-EI-60R-040-50/550 DEG F
Item NameThermometer,self-Indicating,bime
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
Stem Length4.000 INCHES NOMINAL IN
Scale Smallest Increment5.0 DEG FAHRENHEIT
Features ProvidedPROTECTIVE GLASS/PLASTIC
MaterialSTEEL CORROSION RESISTING METER CASE
Style DesignatorSTRAIGHT FORM, HORIZONTAL DIAL
Scale Measurement Range+50.000 TO 550.000 DEG FAHRENHEIT
Design TypeFLUCTUATING
Scale Accuracy Rating1 PCT ENTIRE RANGE
Dial Diameter3.000 INCHES NOMINAL IN
Scale Inscription/background ColorBLACK MARKING ON WHITE BACKGROUND
Scale TypeCONCENTRIC DIAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6685-00-384-034030-EI-60-R-025-0/200F INTERCHANGEABLE
Thermometer,self-Indicating,bime
Ashcroft Inc Dba Heise
6685-00-813-55264-447-99-0200 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Air Products & Chemicals, Inc
6685-00-844-8709M1A2 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Gas Equipment Engineering Corporation, the Dba Geeco
Cross-Reference Index
Part NumberManufacturer
30-6360AHT Ashcroft Inc Dba Heise (USA)
30-EI-60R-040-50/550 DEG F PRIMARY Ashcroft Inc Dba Heise (USA)
30-A1-60R-040-50-550F Ashcroft Inc Dba Heise (USA)
3-6360ANS4 Ashcroft Inc Dba Heise (USA)
30A160RS4 Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-384-0340INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
30-EI-60-R-025-0/200F
6685-00-813-5526INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
4-447-99-0200
6685-00-844-8709INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
M1A2

Frequently Asked Questions

What is NSN 6685-00-865-7431?

NSN 6685-00-865-7431 is a Thermometer,self-Indicating,bime, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-865-7431?

NSN 6685-00-865-7431 has 5 cross-referenced part numbers: 30-6360AHT (Ashcroft Inc Dba Heise), 30-EI-60R-040-50/550 DEG F (Ashcroft Inc Dba Heise), 30-A1-60R-040-50-550F (Ashcroft Inc Dba Heise), 3-6360ANS4 (Ashcroft Inc Dba Heise), 30A160RS4 (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-865-7431?

There are 3 known substitutes for 6685-00-865-7431: 6685-00-384-0340, 6685-00-813-5526, 6685-00-844-8709. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-EI-60R-040-50/550 DEG F?

Key specifications for 30-EI-60R-040-50/550 DEG F: Stem Length: 4.000 INCHES NOMINAL IN; Scale Smallest Increment: 5.0 DEG FAHRENHEIT; Features Provided: PROTECTIVE GLASS/PLASTIC; Material: STEEL CORROSION RESISTING METER CASE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-865-7431 still in active supply?

NSN 6685-00-865-7431 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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