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Technical Data Sheet

AAU-3A/A — Technical Data Sheet

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JOINT ELECTRONICS TYPE DESIGNATION SYSTEM · 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

ALTIMETER,PRESSURIZED COMPARTMEN. Key specifications include SCALE NAME: CABIN PRESSURE ALTITUDE, CONTACT TYPE: PIN, OVERALL DEPTH: 1.750 INCHES NOMINAL IN, OVERALL WIDTH: 2.375 INCHES NOMINAL IN, POINTER COLOR: WHITE, SCALE MARKING: LETTERS AND NUMERALS AND LINED INCREMENTS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-078-0098, 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
AAU-3A/A
NSN: 6685-00-078-0098
FSC: 6685
CAGE: 23669 — AERONAUTICAL AND AERONAUTICAL SUPPORT EQUIPMENT TYPE DESIGNATION SYSTEM/MIL STD 875/
SPECIFICATIONS
SCALE NAMECABIN PRESSURE ALTITUDE
CONTACT TYPEPIN
OVERALL DEPTH1.750 INCHES NOMINAL IN
OVERALL WIDTH2.375 INCHES NOMINAL IN
POINTER COLORWHITE
SCALE MARKINGLETTERS AND NUMERALS AND LINED INCREMENTS
OVERALL HEIGHT2.375 INCHES NOMINAL IN
OVERALL LENGTH2.185 INCHES NOMINAL IN
SCALE QUANTITY1
MOUNTING METHODTHREADED BEZEL
OVERALL DIAMETER2.180 INCHES NOMINAL IN
SPECIAL FEATURES2 INCH DIAL FACE, ANTI-REFLECTION COATING, 5 VAC/DC LIGHTING CIRCUIT PER MIL-L-27160 AND MIL-L-25467, AND INSTRUMENT CASE PER MS33638 VAC
NSN6685-00-078-0098
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ALTIMETER,PRESSURIZED COMPARTMEN TITLE COMPONENT PN AAU-3A/A MFR JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ALTIMETER,PRESSURIZED
KEY FEATURES
CONNECTOR CONTROLLING AGENCY: DEUTSCH
NONLUMINOUS SCALE MARKING AND COLOR: NUMERALS WHITE
SCALE QUANTITY: 1
ELECTRICAL CONNECTION QUANTITY: 1
MECHANICAL CONNECTION SIZE: 1/4/0.250/ IN.
MECHANICAL CONNECTION QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTOR CONTROLLING AGENCYDEUTSCH
OVERALL DEPTH2.375 INCHES NOMINAL IN
NONLUMINOUS SCALE MARKING AND COLORNUMERALS WHITE
SCALE QUANTITY1
ELECTRICAL CONNECTION QUANTITY1
OVERALL WIDTH2.360 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
MECHANICAL CONNECTION SIZE1/4/0.250/ IN.
MECHANICAL CONNECTION QUANTITY1
NONLUMINOUS SCALE MARKING AND COLORLETTERS WHITE
ELECTRICAL CONNECTION IDENTIFYING NUMBERDM5605-3P
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2109-2AInterchangeable
interchangeable cross-reference
interchangeable
MIL-A-25933Interchangeable
interchangeable cross-reference
interchangeable
6685PL1489887Interchangeable
interchangeable cross-reference
interchangeable
CP1AAU3A12Interchangeable
interchangeable cross-reference
interchangeable
2109-5Interchangeable
interchangeable cross-reference
interchangeable
6685PL2067099Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AAU-3A/A?
AAU-3A/A is a ALTIMETER,PRESSURIZED COMPARTMEN manufactured by JOINT ELECTRONICS TYPE DESIGNATION SYSTEM.
What parts can replace AAU-3A/A?
There are 8 known substitutes for AAU-3A/A: 2109-2A, MIL-A-25933, 6685PL1489887 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AAU-3A/A?
AAU-3A/A is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-078-0098. This indicates validated use in U.S. government and defense supply chains.
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