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AB556U ✓ 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 PLATE,BASE,TOWER SUPPORT is a the manufacturer industrial component. Key specifications include material: RUBBER, cord_type: COIL, cord_length: 5.0 FEET NOMINAL FT, design_type: NONREUSABLE, input_phase: SINGLE SINGLE OPERATING POWER RQMT, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF. The unit ships in a 2U form factor suitable for standard rack-mount installations.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5445-00-183-7703, 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
2U BAY→ AB556U
NSN: 5445-00-183-7703
FSC: 5445
CAGE: 80058 — JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (USA)
SPECIFICATIONS
materialRUBBER
cord_typeCOIL
cord_length5.0 FEET NOMINAL FT
design_typeNONREUSABLE
input_phaseSINGLE SINGLE OPERATING POWER RQMT
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
body_diameter0.390 INCHES NOMINAL IN
overall_width21.000 INCHES NOMINAL IN
flow_directionINSIDE OUT
overall_height16.000 INCHES NOMINAL IN
overall_length21.000 INCHES NOMINAL IN
hardness_rating75.0 SHORE DUROMETER A NOMINAL
NSN5445-00-183-7703
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR FORM: 2U PLATE,BASE,TOWER SUPPORT TITLE COMPONENT PN AB556U MFR PLATE,BASE,TOWER SUPPO
KEY FEATURES
•
2U Form Factor
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2381Interchangeable
interchangeable cross-reference
interchangeable
MILF43673Interchangeable
interchangeable cross-reference
interchangeable
1303441-1Interchangeable
interchangeable cross-reference
interchangeable
2431Interchangeable
interchangeable cross-reference
interchangeable
1264-1279Interchangeable
interchangeable cross-reference
interchangeable
190742Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AB556U?
AB556U is a PLATE,BASE,TOWER SUPPORT.
What parts can replace AB556U?
There are 15 known substitutes for AB556U: 2381, MILF43673, 1303441-1 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AB556U?
AB556U is cataloged in the Federal Logistics Information System (FLIS) under NSN 5445-00-183-7703. 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