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Technical Data Sheet
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8DJ43AAM9 — Technical Data Sheet

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AMETEK INC DIV AEROSPACE AND DEFENSE · 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

INDICATOR,ELECTRICAL TACHOMETER. Key specifications include DEPTH: 4.922 INCHES NOMINAL4.922 INCHES NOMINAL IN, WIDTH: 2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN, HEIGHT: 2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN, CONTACT TYPE: PINPIN, CURRENT TYPE: ACAC, SCALE MARKING: MAJOR GRADUATION AND MAJOR GRADUATION AND MINOR GRADUATIONMINOR GRADUATION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 6680-00-663-4214, 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
8DJ43AAM9
NSN: 6680-00-663-4214
FSC: 6680
CAGE: 24446 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
DEPTH4.922 INCHES NOMINAL4.922 INCHES NOMINAL IN
WIDTH2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN
HEIGHT2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN
CONTACT TYPEPINPIN
CURRENT TYPEACAC
SCALE MARKINGMAJOR GRADUATION AND MAJOR GRADUATION AND MINOR GRADUATIONMINOR GRADUATION
POINTER FINISHLUMINOUS SINGLE POINTERLUMINOUS SINGLE POINTER
CONTACT QUANTITY33
PRESENTATION TYPESYNCHRO MOTORSYNCHRO MOTOR
MOUNTING STUD DIAMETER0.170 INCHES NOMINAL0.170 INCHES NOMINAL IN
SCALE MARKING TRANSPARENCYLUMINOUSLUMINOUS
NONDEFINITIVE SPEC/STD DATAMS28000-1 REFERENCE NUMBERMS28000-1 REFERENCE NUMBER
NSN6680-00-663-4214
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: AMETEK INC DIV AEROSPACE AND DEFENSE INDICATOR,ELECTRICAL TACHOMETER TITLE COMPONENT PN 8DJ43AAM9 MFR AMETEK INC DIV AEROSPACE AND DEFENSE INDICATOR,ELECTRICAL T
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 4 UNTHREADED HOLE(S)4 UNTHREADED HOLE(S)
•
MOUNTING STUD DIAMETER: 0.170 INCHES NOMINAL0.170 INCHES NOMINAL IN
•
DEPTH: 4.922 INCHES NOMINAL4.922 INCHES NOMINAL IN
•
SCALE MARKING TRANSPARENCY: LUMINOUSLUMINOUS
•
NONDEFINITIVE SPEC/STD DATA: MS28000-1 REFERENCE NUMBERMS28000-1 REFERENCE NUMBER
•
SCALE MARKING: MAJOR GRADUATION AND MAJOR GRADUATION AND MINOR GRADUATIONMINOR GRADUATION
•
CONTACT TYPE: PINPIN
•
CURRENT TYPE: ACAC
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE(S)4 UNTHREADED HOLE(S)
MOUNTING STUD DIAMETER0.170 INCHES NOMINAL0.170 INCHES NOMINAL IN
DEPTH4.922 INCHES NOMINAL4.922 INCHES NOMINAL IN
SCALE MARKING TRANSPARENCYLUMINOUSLUMINOUS
NONDEFINITIVE SPEC/STD DATAMS28000-1 REFERENCE NUMBERMS28000-1 REFERENCE NUMBER
SCALE MARKINGMAJOR GRADUATION AND MAJOR GRADUATION AND MINOR GRADUATIONMINOR GRADUATION
CONTACT TYPEPINPIN
CURRENT TYPEACAC
HEIGHT2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN
WIDTH2.750 INCHES NOMINAL2.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
8DJ43AAMInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-I-25623InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6620PL1308366InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1559B4-05InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS28000-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8DJ81CAA4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8DJ43AAM9?
8DJ43AAM9 is a INDICATOR,ELECTRICAL TACHOMETER manufactured by AMETEK INC DIV AEROSPACE AND DEFENSE.
What parts can replace 8DJ43AAM9?
There are 8 known substitutes for 8DJ43AAM9: 8DJ43AAM, MIL-I-25623, 6620PL1308366 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8DJ43AAM9?
8DJ43AAM9 is cataloged in the Federal Logistics Information System under NSN 6680-00-663-4214. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026