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B3A4L — Technical Data Sheet

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WEKSLER GLASS THERMOMETER CORP · 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,SELF-INDICATING,BIME. Key specifications include MATERIAL: STEEL CORROSION RESISTING METER CASE, SCALE TYPE: CONCENTRIC DIAL, DESIGN TYPE: FLUCTUATING, STEM LENGTH: 4.000 INCHES NOMINAL IN, DIAL DIAMETER: 3.000 INCHES NOMINAL IN, OVERALL DEPTH: 1.062 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 6685-00-391-8675, 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
B3A4L
NSN: 6685-00-391-8675
FSC: 6685
CAGE: 64467 — WEKSLER GLASS THERMOMETER CORP (USA)
SPECIFICATIONS
MATERIALSTEEL CORROSION RESISTING METER CASE
SCALE TYPECONCENTRIC DIAL
DESIGN TYPEFLUCTUATING
STEM LENGTH4.000 INCHES NOMINAL IN
DIAL DIAMETER3.000 INCHES NOMINAL IN
OVERALL DEPTH1.062 INCHES NOMINAL IN
IMMERSION LENGTH4.000 INCHES NOMINAL IN
FEATURES PROVIDEDPROTECTIVE GLASS/PLASTIC
SCALE ACCURACY RATINGPORM 1 PCT FULL RANGE
MOUNTING THREAD QUANTITY28 PER INCH
SCALE SMALLEST INCREMENT2.0 DEG FAHRENHEIT
SCALE INSCRIPTION/BACKGROUND COLORBLACK MARKING ON WHITE BACKGROUND
NSN6685-00-391-8675
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: WEKSLER GLASS THERMOMETER CORP THERMOMETER,SELF-INDICATING,BIME TITLE COMPONENT PN B3A4L MFR WEKSLER GLASS THERMOMETER CORP THERMOMETER,SELF-INDIC
KEY FEATURES
•
SCALE INSCRIPTION/BACKGROUND COLOR: BLACK MARKING ON WHITE BACKGROUND
•
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER: 0.750 INCHES IN
•
SCALE SMALLEST INCREMENT: 2.0 DEG FAHRENHEIT
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 THREAD
•
FEATURES PROVIDED: PROTECTIVE GLASS/PLASTIC
•
MATERIAL: STEEL CORROSION RESISTING METER CASE
•
STEM LENGTH: 4.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SCALE INSCRIPTION/BACKGROUND COLORBLACK MARKING ON WHITE BACKGROUND
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER0.750 INCHES IN
OVERALL DEPTH1.062 INCHES NOMINAL IN
SCALE SMALLEST INCREMENT2.0 DEG FAHRENHEIT
MOUNTING FACILITY TYPE AND QUANTITY1 THREAD
FEATURES PROVIDEDPROTECTIVE GLASS/PLASTIC
MATERIALSTEEL CORROSION RESISTING METER CASE
STEM LENGTH4.000 INCHES NOMINAL IN
IMMERSION LENGTH4.000 INCHES NOMINAL IN
SCALE ACCURACY RATINGPORM 1 PCT FULL RANGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
ITD-3-24-A-4Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-17244Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3A4L?
B3A4L is a THERMOMETER,SELF-INDICATING,BIME manufactured by WEKSLER GLASS THERMOMETER CORP.
What parts can replace B3A4L?
There are 2 known substitutes for B3A4L: ITD-3-24-A-4, MIL-I-17244. Substitute compatibility should be verified for your specific system.
What is the NSN for B3A4L?
B3A4L is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-391-8675. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026