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ML74A — Technical Data Sheet

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KAHL SCIENTIFIC INSTRUMENT 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

The ROTOR,PSYCHROMETER is a KAHL SCIENTIFIC INSTRUMENT CORPORATION industrial component. Key specifications include DRIVE TYPE: DIRECT, OVERALL LENGTH: 8.656 INCHES NOMINAL IN, OVERALL DIAMETER: 3.375 INCHES NOMINAL IN, NONDEFINITIVE SPEC/STD DATA: ML-74-A TYPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-223-6819, 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
ML74A
NSN: 6685-00-223-6819
FSC: 6685
CAGE: 93489 — KAHL SCIENTIFIC INSTRUMENT CORPORATION (USA)
SPECIFICATIONS
DRIVE TYPEDIRECT
OVERALL LENGTH8.656 INCHES NOMINAL IN
OVERALL DIAMETER3.375 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAML-74-A TYPE
NSN6685-00-223-6819
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: KAHL SCIENTIFIC INSTRUMENT CORPORATION ROTOR,PSYCHROMETER TITLE COMPONENT PN ML74A MFR KAHL SCIENTIFIC INSTRUMENT CORPORATION ROTOR,PSYCHROMETER
KEY FEATURES
•
OVERALL DIAMETER: 3.375 INCHES NOMINAL IN
•
DRIVE TYPE: DIRECT
•
NONDEFINITIVE SPEC/STD DATA: ML-74-A TYPE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER3.375 INCHES NOMINAL IN
OVERALL LENGTH8.656 INCHES NOMINAL IN
DRIVE TYPEDIRECT
NONDEFINITIVE SPEC/STD DATAML-74-A TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
7421Interchangeable
interchangeable cross-reference
interchangeable
VTA427Interchangeable
interchangeable cross-reference
interchangeable
VT3620Interchangeable
interchangeable cross-reference
interchangeable
VT2266Interchangeable
interchangeable cross-reference
interchangeable
570535-1Interchangeable
interchangeable cross-reference
interchangeable
515C2008-24-020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ML74A?
ML74A is a ROTOR,PSYCHROMETER manufactured by KAHL SCIENTIFIC INSTRUMENT CORPORATION.
What parts can replace ML74A?
There are 11 known substitutes for ML74A: 7421, VTA427, VT3620 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ML74A?
ML74A is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-223-6819. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026