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AA33SD ✓ Verified by PartsTable
— · 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

IGNITER,SPARK,GAS TURBINE ENGINE. Key specifications include length: 4.665 INCHES NOMINAL IN, diameter: 0.987 INCHES NOMINAL IN, plug_design: STRAIGHT, mounting_method: THREAD, polarization_feature: NOT INCLUDED, mounting_facility_thread_size: 3/4-20. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2925-00-728-4558, 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
AA33SD
NSN: 2925-00-728-4558
FSC: 2925
CAGE: 0AFL4 — CHAMPION AEROSPACE LLC (USA)
SPECIFICATIONS
length4.665 INCHES NOMINAL IN
diameter0.987 INCHES NOMINAL IN
plug_designSTRAIGHT
mounting_methodTHREAD
polarization_featureNOT INCLUDED
mounting_facility_thread_size3/4-20
NSN2925-00-728-4558
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IGNITER,SPARK,GAS TURBINE ENGINE TITLE COMPONENT PN AA33SD MFR IGNITER,SPARK,GAS TURB
KEY FEATURES
•
MOUNTING METHOD: THREAD
•
POLARIZATION FEATURE: NOT INCLUDED
•
PLUG DESIGN: STRAIGHT
•
DIAMETER: 0.987 INCHES NOMINAL IN
•
LENGTH: 4.665 INCHES NOMINAL IN
•
MOUNTING FACILITY THREAD SIZE: 3/4-20
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTHREAD
POLARIZATION FEATURENOT INCLUDED
PLUG DESIGNSTRAIGHT
DIAMETER0.987 INCHES NOMINAL IN
LENGTH4.665 INCHES NOMINAL IN
MOUNTING FACILITY THREAD SIZE3/4-20
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
424848Interchangeable
interchangeable cross-reference
interchangeable
252533R91Interchangeable
interchangeable cross-reference
interchangeable
748SInterchangeable
interchangeable cross-reference
interchangeable
BB26246Interchangeable
interchangeable cross-reference
interchangeable
SKSH-FSL8-5H27Interchangeable
interchangeable cross-reference
interchangeable
SKSH-FSL8-5HInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA33SD?
AA33SD is a IGNITER,SPARK,GAS TURBINE ENGINE.
What parts can replace AA33SD?
There are 8 known substitutes for AA33SD: 424848, 252533R91, 748S and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA33SD?
AA33SD is cataloged in the Federal Logistics Information System (FLIS) under NSN 2925-00-728-4558. 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: July 2026