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BR521004 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

BR521004: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include length: 0.625 INCHES NOMINAL IN, diameter: 0.190 INCHES NOMINAL IN, material: CARBON GRAPHITE, body_style: CYLINDRICAL, style_designator: ONE PIECE, contact_face_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-284-8972, 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
BR521004
NSN: 5977-00-284-8972
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
length0.625 INCHES NOMINAL IN
diameter0.190 INCHES NOMINAL IN
materialCARBON GRAPHITE
body_styleCYLINDRICAL
style_designatorONE PIECE
contact_face_styleFLAT
pressure_spring_type_and_quantity1 CYLINDRICAL WITH REDUCED END
material_document_and_classificationMORGANITE INC,GRADE B6+1 MFR REF SINGLE MATERIAL RESPONSE
NSN5977-00-284-8972
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN BR521004 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 0.625 INCHES NOMINAL IN
•
BODY STYLE: CYLINDRICAL
•
STYLE DESIGNATOR: ONE PIECE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MORGANITE INC,GRADE B6+1 MFR REF SINGLE MATERIAL RESPONSE
•
DIAMETER: 0.190 INCHES NOMINAL IN
•
PRESSURE SPRING TYPE AND QUANTITY: 1 CYLINDRICAL WITH REDUCED END
•
CONTACT FACE STYLE: FLAT
•
MATERIAL: CARBON GRAPHITE
TECHNICAL CHARACTERISTICS
LENGTH0.625 INCHES NOMINAL IN
BODY STYLECYLINDRICAL
STYLE DESIGNATORONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATIONMORGANITE INC,GRADE B6+1 MFR REF SINGLE MATERIAL RESPONSE
DIAMETER0.190 INCHES NOMINAL IN
PRESSURE SPRING TYPE AND QUANTITY1 CYLINDRICAL WITH REDUCED END
CONTACT FACE STYLEFLAT
MATERIALCARBON GRAPHITE
OTHER ITEMS IN FSC 5977 — Electrical Contact Brushes and Electrodes
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5977-00-001-8018 5977-00-001-8867 5977-00-002-9654 5977-00-003-0257 5977-00-003-0258 5977-00-003-0264 5977-00-003-1196 5977-00-003-1197
SUBSTITUTES & CROSS-REFERENCES 2
BR5219Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BR5230Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BR521004?
BR521004 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace BR521004?
There are 2 known substitutes for BR521004: BR5219, BR5230. Substitute compatibility should be verified for your specific system.
What is the NSN for BR521004?
BR521004 is cataloged in the U.S. Government catalog under NSN 5977-00-284-8972. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.