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73401 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

73401: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.372 INCHES NOMINAL IN, length: 1.260 INCHES NOMINAL IN, thickness: 0.367 INCHES NOMINAL IN, body_style: RECTANGULAR COMMUTATOR, hole_diameter: 0.250 INCHES NOMINAL IN, overall_diameter: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-038-9449, 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
73401
NSN: 5310-00-038-9449
NIINs: 000389449, 001658645, 002131690, 010872759, 014750103
FSC: 5310 — Nuts and Washers
CAGE: 24975 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
width0.372 INCHES NOMINAL IN
length1.260 INCHES NOMINAL IN
thickness0.367 INCHES NOMINAL IN
body_styleRECTANGULAR COMMUTATOR
hole_diameter0.250 INCHES NOMINAL IN
overall_diameter0.750 INCHES NOMINAL IN
style_designatorSEAT
terminal_diameter0.328 INCHES NOMINAL IN
brush_shunt_length1.610 INCHES NOMINAL SINGLE SHUNT IN
contact_face_styleFLAT
spring_free_length1.610 INCHES NOMINAL IN
peripheral_shape_styleROUND
NSN5310-00-038-9449
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 73401 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 0.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: MICA OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.250 INCHES NOMINAL IN
•
THICKNESS: 0.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALMICA OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.250 INCHES NOMINAL IN
THICKNESS0.060 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
10505831Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5310000389449Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 73401?
73401 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace 73401?
There are 2 known substitutes for 73401: 10505831, 5310000389449. Substitute compatibility should be verified for your specific system.
What is the NSN for 73401?
73401 is cataloged in the U.S. Government catalog under NSN 5310-00-038-9449. 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.