PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57DFM0L417Thermometer,indicating,capillary

Bellofram Corporation · NSN 6685-00-835-2744 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-835-2744 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-835-2744. Primary manufacturer part number: 57DFM0L417.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Active Portion Diameter: 0.375 INCHES NOMINAL IN
  • Bulb Quantity: 1
  • Scale Accuracy Rating: 2 PCT
  • Material: STEEL METER CASE
  • Material: COPPER ALLOY BULB
  • Style Designator: BULB W/O SOCKET
  • Bulb Tip Length: 3.000 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Meter Case construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-835-2744, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bellofram Corporation. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 2 manufacturers, 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
NSN6685-00-835-2744
Primary Part Number57DFM0L417
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBellofram Corporation
StatusCANCELLED
Active Portion Diameter0.375 INCHES NOMINAL IN
Bulb Quantity1
Scale Accuracy Rating2 PCT
MaterialSTEEL METER CASE
MaterialCOPPER ALLOY BULB
Style DesignatorBULB W/O SOCKET
Bulb Tip Length3.000 INCHES NOMINAL IN
Dial Diameter2.500 INCHES NOMINAL IN
Bulb TypePLAIN RIGID
Actuating MediumVAPOR TENSION
Flexible Tube Length72.000 INCHES NOMINAL IN
Scale Smallest Increment2.0 DEG FAHRENHEIT
Active Portion Length3.000 INCHES NOMINAL IN
Pointer/pen Type and Quantity1 INDICATING SINGLE
Scale TypeCONCENTRIC DIAL
Extension Neck Length0.875 INCHES NOMINAL IN
Scale Inscription/background ColorBLACK MARKING ON WHITE BACKGROUND
Bulb Connection TypeUNION
Case TypeVAPORPROOF
Case Diameter2.781 INCHES NOMINAL IN
Bulb Overall Length3.875 INCHES NOMINAL IN
Indicator Connection MethodFLEXIBLE TUBE
Bulb StylePLAIN BULB W/BENDABLE EXTENSION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6685-00-023-1734K25240-003 FAHRENHEIT INTERCHANGEABLE
Thermometer,indicating,capillary
Tempco Inc Dba Marshalltown Tempco
6685-00-812-7832 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-936-6040K25150 INTERCHANGEABLE
Thermometer,indicating,capillary
Tempco Inc Dba Marshalltown Tempco
Cross-Reference Index
Part NumberManufacturer
XD57-142 Bellofram Corporation (USA)
TYPE57 Desco Corp Marsh Bellofram Div (USA)
57DFM Bellofram Corporation (USA)
0L417M0DEL57DFM Bellofram Corporation (USA)
TYPE57 Bellofram Corporation (USA)
0L417 Bellofram Corporation (USA)
57DFM0L417 PRIMARY Bellofram Corporation (USA)
57DFM0L417 Desco Corp Marsh Bellofram Div (USA)
0L417M0DEL57DFM Desco Corp Marsh Bellofram Div (USA)
0L417 Desco Corp Marsh Bellofram Div (USA)
XD57-142 Desco Corp Marsh Bellofram Div (USA)
57DFM Desco Corp Marsh Bellofram Div (USA)
Related Parts
6685-00-023-1734INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
K25240-003 FAHRENHEIT
6685-00-812-7832INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-936-6040INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
K25150

Frequently Asked Questions

What is NSN 6685-00-835-2744?

NSN 6685-00-835-2744 is a Thermometer,indicating,capillary, manufactured by Bellofram Corporation, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-835-2744?

NSN 6685-00-835-2744 has 12 cross-referenced part numbers: XD57-142 (Bellofram Corporation), TYPE57 (Desco Corp Marsh Bellofram Div), 57DFM (Bellofram Corporation), 0L417M0DEL57DFM (Bellofram Corporation), TYPE57 (Bellofram Corporation) and 7 more.

What NSN replaces 6685-00-835-2744?

There are 3 known substitutes for 6685-00-835-2744: 6685-00-023-1734, 6685-00-812-7832, 6685-00-936-6040. Verify interchangeability with system specifications before substitution.

What are the specifications of 57DFM0L417?

Key specifications for 57DFM0L417: Active Portion Diameter: 0.375 INCHES NOMINAL IN; Bulb Quantity: 1; Scale Accuracy Rating: 2 PCT; Material: STEEL METER CASE. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-835-2744 still in active supply?

NSN 6685-00-835-2744 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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