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Technical Data Sheet
AA55A ✓ 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

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include width: 0.500 INCHES NOMINAL IN, length: 0.875 INCHES NOMINAL IN, radius: 1.219 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, duty_type: CONTINUOUS, thickness: 0.375 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 5977-00-033-3678, 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
AA55A
NSN: 5977-00-033-3678
FSC: 5977
CAGE: 20154 — EATON CORP INDUSTRIAL DRIVES OPNS KENOSHA DIV GLADSTONE PLANT (USA)
SPECIFICATIONS
width0.500 INCHES NOMINAL IN
length0.875 INCHES NOMINAL IN
radius1.219 INCHES NOMINAL IN
materialELECTROGRAPHITIC
duty_typeCONTINUOUS
thickness0.375 INCHES NOMINAL IN
body_styleRECTANGULAR COMMUTATOR
coil_quantity1
overall_width4.000 INCHES NOMINAL IN
overall_height3.810 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
special_featuresLUG FORMED ON SHUNT
NSN5977-00-033-3678
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN AA55A MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
WIDTH: 0.500 INCHES NOMINAL IN
RADIUS: 1.219 INCHES NOMINAL IN
LENGTH: 0.875 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER: 0.350 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY: 1 STRAIGHT W/HOLE
STYLE DESIGNATOR: ONE PIECE
PRESSURE SPRING TYPE AND QUANTITY: 1 CYLINDRICAL
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH0.500 INCHES NOMINAL IN
RADIUS1.219 INCHES NOMINAL IN
LENGTH0.875 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER0.350 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY1 STRAIGHT W/HOLE
STYLE DESIGNATORONE PIECE
PRESSURE SPRING TYPE AND QUANTITY1 CYLINDRICAL
SPECIAL FEATURESLUG FORMED ON SHUNT
MATERIALELECTROGRAPHITIC
MATERIAL DOCUMENT AND CLASSIFICATIONCARBON ENGINEERING CORP,GRADE A MFR REF SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
JHP49-021Interchangeable
interchangeable cross-reference
interchangeable
A700AAPInterchangeable
interchangeable cross-reference
interchangeable
205-075-642-001Interchangeable
interchangeable cross-reference
interchangeable
STB25Interchangeable
Same NIIN cross-reference
interchangeable
H5977-033-3678Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA55A?
AA55A is a RELAY,ELECTROMAGNETIC.
What parts can replace AA55A?
There are 5 known substitutes for AA55A: JHP49-021, A700AAP, 205-075-642-001 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA55A?
AA55A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-033-3678. This indicates validated use in U.S. government and defense supply chains.
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