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Technical Data Sheet

57DFM — Technical Data Sheet

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BELLOFRAM CORPORATION · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

THERMOMETER,INDICATING,CAPILLARY. Key specifications include MATERIAL: COPPER ALLOY BULB, BULB TYPE: PLAIN RIGID, CASE TYPE: VAPORPROOF, BULB STYLE: PLAIN BULB W/BENDABLE EXTENSION, SCALE TYPE: CONCENTRIC DIAL, CASE DIAMETER: 2.781 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-023-1734, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
57DFM
NSN: 6685-00-023-1734
FSC: 6685
CAGE: 38508 — DESCO CORP MARSH BELLOFRAM DIV (USA)
SPECIFICATIONS
MATERIALCOPPER ALLOY BULB
BULB TYPEPLAIN RIGID
CASE TYPEVAPORPROOF
BULB STYLEPLAIN BULB W/BENDABLE EXTENSION
SCALE TYPECONCENTRIC DIAL
BULB QUANTITY1
CASE DIAMETER2.781 INCHES NOMINAL IN
DIAL DIAMETER2.500 INCHES NOMINAL IN
BULB TIP LENGTH3.000 INCHES NOMINAL IN
ACTUATING MEDIUMVAPOR TENSION
STYLE DESIGNATORBULB W/O SOCKET
BULB OVERALL LENGTH3.875 INCHES NOMINAL IN
NSN6685-00-023-1734
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: BELLOFRAM CORPORATION THERMOMETER,INDICATING,CAPILLARY TITLE COMPONENT PN 57DFM MFR BELLOFRAM CORPORATION THERMOMETER,INDICATING
KEY FEATURES
•
INDICATOR CONNECTION METHOD: RIGID STEM
•
BULB QUANTITY: 1
•
SCALE MEASUREMENT RANGE: +30.000 TO 180.000 DEG FAHRENHEIT
•
BULB TYPE: PLAIN RIGID
•
MATERIAL: BRASS BULB
•
FLEXIBLE TUBE LENGTH: 36.000 INCHES NOMINAL IN
•
BULB OVERALL LENGTH: 3.000 INCHES NOMINAL IN
•
BULB STYLE: PLAIN BULB
TECHNICAL CHARACTERISTICS (FLIS)
INDICATOR CONNECTION METHODRIGID STEM
BULB QUANTITY1
SCALE MEASUREMENT RANGE+30.000 TO 180.000 DEG FAHRENHEIT
BULB TYPEPLAIN RIGID
MATERIALBRASS BULB
FLEXIBLE TUBE LENGTH36.000 INCHES NOMINAL IN
BULB OVERALL LENGTH3.000 INCHES NOMINAL IN
BULB STYLEPLAIN BULB
STYLE DESIGNATORPLAIN RIGID
POINTER/PEN TYPE AND QUANTITY1 INDICATING SINGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
518851Interchangeable
interchangeable cross-reference
interchangeable
XD57-142Interchangeable
interchangeable cross-reference
interchangeable
TYPE57Interchangeable
interchangeable cross-reference
interchangeable
67A77C194Interchangeable
interchangeable cross-reference
interchangeable
202001Interchangeable
interchangeable cross-reference
interchangeable
K2555Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57DFM?
57DFM is a THERMOMETER,INDICATING,CAPILLARY manufactured by BELLOFRAM CORPORATION.
What parts can replace 57DFM?
There are 11 known substitutes for 57DFM: 518851, XD57-142, TYPE57 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 57DFM?
57DFM is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-023-1734. This indicates validated use in U.S. government and defense supply chains.
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