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D-56 ✓ 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 BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.250 INCHES NOMINAL IN, length: 0.375 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, thickness: 0.156 INCHES NOMINAL IN, body_style: RECTANGULAR COMMUTATOR, duty_cycle: CONTINUOUS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-188-2146, 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
D-56
NSN: 5977-00-188-2146
FSC: 5977
CAGE: 76468 — MORGANITE INC (USA)
SPECIFICATIONS
width0.250 INCHES NOMINAL IN
length0.375 INCHES NOMINAL IN
materialELECTROGRAPHITIC
thickness0.156 INCHES NOMINAL IN
body_styleRECTANGULAR COMMUTATOR
duty_cycleCONTINUOUS
overall_width4.000 INCHES MAXIMUM IN
overall_height3.940 INCHES MAXIMUM IN
overall_length5.150 INCHES MAXIMUM IN
actuation_methodMAGNETIC
special_features1 PRESSURE SPRING
style_designatorONE PIECE
NSN5977-00-188-2146
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN D-56 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
WIDTH: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ONE PIECE
•
BRUSH SHUNT LENGTH: 1.000 INCHES NOMINAL SINGLE SHUNT IN
•
SHUNT INSULATION PROVISION AND QUANTITY: 1 UNINSULATED
•
LENGTH: 0.375 INCHES NOMINAL IN
•
MATERIAL: ELECTROGRAPHITIC
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH0.250 INCHES NOMINAL IN
STYLE DESIGNATORONE PIECE
STYLE DESIGNATORONE PIECE
BRUSH SHUNT LENGTH1.000 INCHES NOMINAL SINGLE SHUNT IN
SPECIAL FEATURES1 PRESSURE SPRING
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
LENGTH0.375 INCHES NOMINAL IN
MATERIALELECTROGRAPHITIC
TERMINAL TYPE AND QUANTITY1 ROUND CAP
CONTACT FACE STYLECONCAVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
56D6221Interchangeable
interchangeable cross-reference
interchangeable
95715Interchangeable
interchangeable cross-reference
interchangeable
D56Interchangeable
interchangeable cross-reference
interchangeable
MILS3531Interchangeable
interchangeable cross-reference
interchangeable
4L480Interchangeable
interchangeable cross-reference
interchangeable
16192Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D-56?
D-56 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace D-56?
There are 9 known substitutes for D-56: 56D6221, 95715, D56 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D-56?
D-56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-188-2146. 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