PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4250M-S2 50/550FThermometer,self-Indicating,bime

Moeller Instrument Company, Inc. Dba Moeller Instrument Co · NSN 6685-00-782-5250 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-782-5250 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-782-5250. Primary manufacturer part number: 4250M-S2 50/550F.
Features
  • Thermometer,self-Indicating,bime — FSC 6685
  • Scale Smallest Increment: 5.0 DEG FAHRENHEIT
  • Stem Length: 2.000 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: B FORM
  • Material: STEEL CORROSION RESISTING METER CASE
  • Surface Treatment: ENAMEL METER CASE
  • Style Designator: STRAIGHT FORM, HORIZONTAL DIAL
  • Design Type: FLUCTUATING
Applications
  • Applications requiring Steel Corrosion Resisting Meter Case construction
General Description

The Thermometer,self-Indicating,bime, cataloged under National Stock Number 6685-00-782-5250, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Moeller Instrument Company, Inc. Dba Moeller Instrument Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-782-5250
Primary Part Number4250M-S2 50/550F
Item NameThermometer,self-Indicating,bime
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMoeller Instrument Company, Inc. Dba Moeller Instrument Co
StatusCANCELLED
Scale Smallest Increment5.0 DEG FAHRENHEIT
Stem Length2.000 INCHES NOMINAL IN
Nondefinitive Spec/std DataB FORM
MaterialSTEEL CORROSION RESISTING METER CASE
Surface TreatmentENAMEL METER CASE
Style DesignatorSTRAIGHT FORM, HORIZONTAL DIAL
Design TypeFLUCTUATING
Scale Measurement Range+50.000 TO 550.000 DEG FAHRENHEIT
Scale Accuracy Rating1 PCT
Scale TypeCONCENTRIC DIAL
Features ProvidedPROTECTIVE GLASS/PLASTIC
Scale Inscription/background ColorBLACK MARKING ON WHITE BACKGROUND
Dial Diameter3.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5306-00-281-5137945853 INTERCHANGEABLE
Bolt,machine
Am General Llc
5961-01-012-9316 INTERCHANGEABLE
Transistor
6685-01-343-06394750M-S4 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Moeller Instrument Company, Inc. Dba Moeller Instrument Co
5925-01-602-233060147 INTERCHANGEABLE
Circuit Breaker
Schneider Electric Usa, Inc.
Cross-Reference Index
Part NumberManufacturer
B3A2W Weksler Glass Thermometer Corp (USA)
715J486PC57 Northrop Grumman Systems Corporation Div Marine Systems (USA)
19465T3/4 Process Supply Inc Dba Defense Products International (USA)
4250M-S2 50/550F PRIMARY Moeller Instrument Company, Inc. Dba Moeller Instrument Co (USA)
6-0147 Psg Controls, Inc. (USA)
6-01471 Sigma Products & Mfg (USA)
6-01471 Psg Controls, Inc. (USA)
RI-019-01 Rhythm Industries Inc (USA)
4250M-S2 Moeller Instrument Company, Inc. Dba Moeller Instrument Co (USA)
Related Parts
5306-00-281-5137INTERCHANGEABLE
BOLT,MACHINE
945853
5961-01-012-9316INTERCHANGEABLE
TRANSISTOR
6685-01-343-0639INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
4750M-S4
5925-01-602-2330INTERCHANGEABLE
CIRCUIT BREAKER
60147

Frequently Asked Questions

What is NSN 6685-00-782-5250?

NSN 6685-00-782-5250 is a Thermometer,self-Indicating,bime, manufactured by Moeller Instrument Company, Inc. Dba Moeller Instrument Co, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-782-5250?

NSN 6685-00-782-5250 has 9 cross-referenced part numbers: B3A2W (Weksler Glass Thermometer Corp), 715J486PC57 (Northrop Grumman Systems Corporation Div Marine Systems), 19465T3/4 (Process Supply Inc Dba Defense Products International), 4250M-S2 50/550F (Moeller Instrument Company, Inc. Dba Moeller Instrument Co), 6-0147 (Psg Controls, Inc.) and 4 more.

What NSN replaces 6685-00-782-5250?

There are 4 known substitutes for 6685-00-782-5250: 5306-00-281-5137, 5961-01-012-9316, 6685-01-343-0639 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4250M-S2 50/550F?

Key specifications for 4250M-S2 50/550F: Scale Smallest Increment: 5.0 DEG FAHRENHEIT; Stem Length: 2.000 INCHES NOMINAL IN; Nondefinitive Spec/std Data: B FORM; Material: STEEL CORROSION RESISTING METER CASE. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-782-5250 still in active supply?

NSN 6685-00-782-5250 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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