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MILB3743 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

MILB3743: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include angle: 30.0 DEGREES NOMINAL, width: 1.250 INCHES NOMINAL IN, length: 2.000 INCHES NOMINAL IN, radius: 3.563 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, clip_type: NEMA HAMMER TYPE EXTENDED A. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-038-2233, 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
MRO→ MRO_GENERAL→ MILB3743
NSN: 5977-00-038-2233
NIINs: 000382233, 000902711, 000902759, 002394046, 002394129, 002421348, 002438965, 002463352, 002568437, 002803375, 002806759, 002806764, 002808399, 002808425, 002808431, 002808432, 002808446, 002808451, 002808462, 002808464, 002808541, 002809008, 002809026, 002847879, 002850872, 003788654, 003829163, 003833341, 003833381, 003833765, 003860904, 003870039, 003870046, 003880578, 003880579, 003914008, 005046362, 005387534, 005521411, 005562029, 005577138, 005778181, 005833928, 006007226, 006209586, 006440193, 006442710, 006442917, 006442924, 006442925, 006443188, 006443191, 006443192, 006443259, 006769438, 006885261, 007521576, 007548211, 007874419, 008177862, 008177863, 008921568, 009286366, 009941191
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
angle30.0 DEGREES NOMINAL
width1.250 INCHES NOMINAL IN
length2.000 INCHES NOMINAL IN
radius3.563 INCHES NOMINAL IN
materialELECTROGRAPHITIC
clip_typeNEMA HAMMER TYPE EXTENDED A
thickness0.500 INCHES NOMINAL IN
top_styleBEVELED FRONT
body_styleRECTANGULAR COMMUTATOR
bevel_angle15.0 DEGREES NOMINAL
extension_length0.173 INCHES NOMINAL IN
special_featuresTERMINAL BENT 60 DEG
NSN5977-00-038-2233
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN MILB3743 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 1.000 INCHES NOMINAL IN
•
BODY STYLE: RECTANGULAR SLIP RING
•
RADIUS: 3.000 INCHES NOMINAL IN
•
TERMINAL SLOT WIDTH: 0.156 INCHES NOMINAL IN
•
TOP STYLE: FLAT
•
SHUNT POSITION DESIGNATOR: 6
•
STYLE DESIGNATOR: ONE PIECE
•
MATERIAL DOCUMENT AND CLASSIFICATION: NATIONAL GRADE AY MFR REF SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
LENGTH1.000 INCHES NOMINAL IN
BODY STYLERECTANGULAR SLIP RING
RADIUS3.000 INCHES NOMINAL IN
TERMINAL SLOT WIDTH0.156 INCHES NOMINAL IN
TOP STYLEFLAT
SHUNT POSITION DESIGNATOR6
STYLE DESIGNATORONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATIONNATIONAL GRADE AY MFR REF SINGLE MATERIAL RESPONSE
BRUSH SHUNT LENGTH2.500 INCHES NOMINAL SINGLE SHUNT IN
CONTACT FACE STYLECONCAVE
SUBSTITUTES & CROSS-REFERENCES 5
S1241632B701Reference document
Same NSN cross-reference
Reference document — Secondary reference
RC24-1606Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-4289P3Reference document
Same NSN cross-reference
Reference document — Secondary reference
61008754Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
A-4289-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MILB3743?
MILB3743 is a BRUSH,ELECTRICAL CONTACT. It is classified as a MRO (MRO_GENERAL).
What parts can replace MILB3743?
There are 5 known substitutes for MILB3743: S1241632B701, RC24-1606, A-4289P3 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MILB3743?
MILB3743 is cataloged in the U.S. Government catalog under NSN 5977-00-038-2233. 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.