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M-BJM5-21 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

M-BJM5-21: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.750 INCHES NOMINAL IN, length: 0.875 INCHES NOMINAL IN, material: CARBON, thickness: 0.312 INCHES NOMINAL IN, body_style: RECTANGULAR COMMUTATOR, style_designator: ONE PIECE. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-983-8629, 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
M-BJM5-21
NSN: 5977-00-983-8629
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 18783 — MIRAJ CORP (USA)
SPECIFICATIONS
width0.750 INCHES NOMINAL IN
length0.875 INCHES NOMINAL IN
materialCARBON
thickness0.312 INCHES NOMINAL IN
body_styleRECTANGULAR COMMUTATOR
style_designatorONE PIECE
brush_shunt_length1.375 INCHES NOMINAL SINGLE SHUNT IN
contact_face_styleFLAT
shunt_position_designator1
material_document_and_classificationSUNSTRAND CARBON GRADE 417 MFR REF SINGLE MATERIAL RESPONSE
shunt_insulation_provision_and_quantity1 UNINSULATED
NSN5977-00-983-8629
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN M-BJM5-21 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 0.875 INCHES NOMINAL IN
•
BODY STYLE: RECTANGULAR COMMUTATOR
•
SHUNT POSITION DESIGNATOR: 1
•
STYLE DESIGNATOR: ONE PIECE
•
MATERIAL DOCUMENT AND CLASSIFICATION: SUNSTRAND CARBON GRADE 417 MFR REF SINGLE MATERIAL RESPONSE
•
BRUSH SHUNT LENGTH: 1.375 INCHES NOMINAL SINGLE SHUNT IN
•
CONTACT FACE STYLE: FLAT
•
SHUNT INSULATION PROVISION AND QUANTITY: 1 UNINSULATED
TECHNICAL CHARACTERISTICS
LENGTH0.875 INCHES NOMINAL IN
BODY STYLERECTANGULAR COMMUTATOR
SHUNT POSITION DESIGNATOR1
STYLE DESIGNATORONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATIONSUNSTRAND CARBON GRADE 417 MFR REF SINGLE MATERIAL RESPONSE
BRUSH SHUNT LENGTH1.375 INCHES NOMINAL SINGLE SHUNT IN
CONTACT FACE STYLEFLAT
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
WIDTH0.750 INCHES NOMINAL IN
MATERIALCARBON
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 1
5074-003Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M-BJM5-21?
M-BJM5-21 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace M-BJM5-21?
There is 1 known substitute for M-BJM5-21: 5074-003. Substitute compatibility should be verified for your specific system.
What is the NSN for M-BJM5-21?
M-BJM5-21 is cataloged in the U.S. Government catalog under NSN 5977-00-983-8629. 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.