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PartsTable / COMPONENT / A1633-4
A1633-4 ✓ 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: 0.625 INCHES NOMINAL IN, length: 0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN, radius: 1.609 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, thickness: 0.402 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN, top_style: FLAT WITH RECTANGULAR SLOT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-245-2063, 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
A1633-4
NSN: 5977-00-245-2063
FSC: 5977
CAGE: 56883 — PENETONE CORPORATION DBA WEST PENETONE (USA)
SPECIFICATIONS
width0.625 INCHES NOMINAL IN
length0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
radius1.609 INCHES NOMINAL IN
materialELECTROGRAPHITIC
thickness0.402 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
top_styleFLAT WITH RECTANGULAR SLOT
body_styleRECTANGULAR COMMUTATOR
slot_depth0.062 INCHES NOMINAL IN
slot_width0.312 INCHES NOMINAL IN
special_featuresTOP LEFT EDGE BEVELED
style_designatorONE PIECE
brush_shunt_length1.875 INCHES NOMINAL SINGLE SHUNT IN
NSN5977-00-245-2063
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN A1633-4 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
CONTACT FACE STYLE: CONCAVE
•
TOP STYLE: FLAT WITH RECTANGULAR SLOT
•
MATERIAL DOCUMENT AND CLASSIFICATION: SPEER CARBON CO,GR E-25 MFR REF SINGLE MATERIAL RESPONSE
•
SHUNT INSULATION PROVISION AND QUANTITY: 1 INSULATED
•
MATERIAL: ELECTROGRAPHITIC
•
STYLE DESIGNATOR: ONE PIECE
•
WIDTH: 0.625 INCHES NOMINAL IN
•
OUTER EDGE TO SLOT EDGE DISTANCE: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT FACE STYLECONCAVE
TOP STYLEFLAT WITH RECTANGULAR SLOT
MATERIAL DOCUMENT AND CLASSIFICATIONSPEER CARBON CO,GR E-25 MFR REF SINGLE MATERIAL RESPONSE
SHUNT INSULATION PROVISION AND QUANTITY1 INSULATED
MATERIALELECTROGRAPHITIC
STYLE DESIGNATORONE PIECE
WIDTH0.625 INCHES NOMINAL IN
OUTER EDGE TO SLOT EDGE DISTANCE0.156 INCHES NOMINAL IN
SPECIAL FEATURESTOP LEFT EDGE BEVELED
SLOT DEPTH0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
225834Interchangeable
interchangeable cross-reference
interchangeable
193581Interchangeable
interchangeable cross-reference
interchangeable
101904Interchangeable
interchangeable cross-reference
interchangeable
DG-543-4-155Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1633-4?
A1633-4 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace A1633-4?
There are 4 known substitutes for A1633-4: 225834, 193581, 101904 and 1 more. Substitute compatibility should be verified for your specific system.
Is A1633-4 still available?
A1633-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026