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Technical Data Sheet
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54400-621 — Technical Data Sheet

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— · 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 CUSHION,EAR is a the manufacturer industrial component. Key specifications include material: PLASTIC VINYL EARPHONE CUSHION, body_style: EARPHONE CUSHION, RECTANGULAR, earphone_cushion_thickness: 0.562 INCHES NOMINAL IN, earphone_cushion_inside_width: 1.562 INCHES NOMINAL IN, earphone_cushion_inside_height: 2.375 INCHES NOMINAL IN, earphone_cushion_outside_width: 3.125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5965-00-420-5653, 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
54400-621
NSN: 5965-00-420-5653
FSC: 5965
CAGE: 82872 — ROANWELL, LLC (USA)
SPECIFICATIONS
materialPLASTIC VINYL EARPHONE CUSHION
body_styleEARPHONE CUSHION, RECTANGULAR
earphone_cushion_thickness0.562 INCHES NOMINAL IN
earphone_cushion_inside_width1.562 INCHES NOMINAL IN
earphone_cushion_inside_height2.375 INCHES NOMINAL IN
earphone_cushion_outside_width3.125 INCHES NOMINAL IN
earphone_cushion_outside_height4.000 INCHES NOMINAL IN
NSN5965-00-420-5653
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CUSHION,EAR TITLE COMPONENT PN 54400-621 MFR CUSHION,EAR
KEY FEATURES
•
BODY STYLE: EARPHONE CUSHION, RECTANGULAR
•
EARPHONE CUSHION INSIDE WIDTH: 1.562 INCHES NOMINAL IN
•
EARPHONE CUSHION OUTSIDE WIDTH: 3.125 INCHES NOMINAL IN
•
EARPHONE CUSHION INSIDE HEIGHT: 2.375 INCHES NOMINAL IN
•
EARPHONE CUSHION THICKNESS: 0.562 INCHES NOMINAL IN
•
EARPHONE CUSHION OUTSIDE HEIGHT: 4.000 INCHES NOMINAL IN
•
MATERIAL: PLASTIC VINYL EARPHONE CUSHION
TECHNICAL CHARACTERISTICS
BODY STYLEEARPHONE CUSHION, RECTANGULAR
EARPHONE CUSHION INSIDE WIDTH1.562 INCHES NOMINAL IN
EARPHONE CUSHION OUTSIDE WIDTH3.125 INCHES NOMINAL IN
EARPHONE CUSHION INSIDE HEIGHT2.375 INCHES NOMINAL IN
EARPHONE CUSHION THICKNESS0.562 INCHES NOMINAL IN
EARPHONE CUSHION OUTSIDE HEIGHT4.000 INCHES NOMINAL IN
MATERIALPLASTIC VINYL EARPHONE CUSHION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
0405-25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LAC-440-0CIInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5-440-0InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-G-14609InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
QQ-A-200/3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 54400-621?
54400-621 is a CUSHION,EAR.
What parts can replace 54400-621?
There are 15 known substitutes for 54400-621: 0405-25, LAC-440-0CI, 5-440-0 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 54400-621?
54400-621 is cataloged in the Federal Logistics Information System under NSN 5965-00-420-5653. 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: September 2026