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Technical Data Sheet
AC421 ✓ 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

CHASSIS,ELECTRICAL-ELECTRONIC EQ. Key specifications include color: ALUMINUM, NATURAL, material: ALUMINUM ALLOY 5005, overall_depth: 5.000 INCHES NOMINAL IN, overall_width: 9.500 INCHES NOMINAL IN, design_feature: PUNCHED HOLES, overall_height: 3.000 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 5975-00-549-9431, 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
AC421
NSN: 5975-00-549-9431
FSC: 5975
CAGE: 71218 — BUD INDUSTRIES INC (USA)
SPECIFICATIONS
colorALUMINUM, NATURAL
materialALUMINUM ALLOY 5005
overall_depth5.000 INCHES NOMINAL IN
overall_width9.500 INCHES NOMINAL IN
design_featurePUNCHED HOLES
overall_height3.000 INCHES NOMINAL IN
style_designatorCLOSED ENDS AND SIDES FLANGED
material_thickness0.040 INCHES NOMINAL IN
mounting_provisionUNTHREADED HOLE
mounting_facility_size0.219 IN. DIA IN
mounting_hole_diameter0.219 INCHES IN
mounting_hole_quantity4
NSN5975-00-549-9431
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CHASSIS,ELECTRICAL-ELECTRONIC EQ TITLE COMPONENT PN AC421 MFR CHASSIS,ELECTRICAL-ELE
KEY FEATURES
MOUNTING HOLE DIAMETER: 0.219 INCHES IN
MOUNTING FACILITY SIZE: 0.219 IN. DIA IN
MOUNTING HOLE QUANTITY: 4
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT3.000 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.219 INCHES IN
OVERALL DEPTH5.000 INCHES NOMINAL IN
MOUNTING FACILITY SIZE0.219 IN. DIA IN
MOUNTING HOLE QUANTITY4
OVERALL WIDTH9.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY4
COLORALUMINUM, NATURAL
MOUNTING FACILITY SPACING3.000 IN. C TO C IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
AC421Interchangeable
interchangeable cross-reference
interchangeable
B125Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AC421?
AC421 is a CHASSIS,ELECTRICAL-ELECTRONIC EQ.
What parts can replace AC421?
There are 2 known substitutes for AC421: AC421, B125. Substitute compatibility should be verified for your specific system.
What is the NSN for AC421?
AC421 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-549-9431. This indicates validated use in U.S. government and defense supply chains.
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