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303801 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, shell_type: SOLID, design_type: LIGHTWEIGHT, thread_class: 2A A, terminal_type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING, fiber_material: POLYESTER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-078-2676, 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
303801
NSN: 5310-00-078-2676
FSC: 5310
CAGE: 21119 — EVINRUDE MOTORS PRODUCT GROUP OF OUTBOARD MARINE CORP (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
shell_typeSOLID
design_typeLIGHTWEIGHT
thread_class2A A
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
fiber_materialPOLYESTER
overall_length1.063 INCHES NOMINAL IN
shell_materialCOPPER ALLOY
insert_materialPLASTIC SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
overall_diameter0.500 INCHES NOMINAL IN
size_designationSMALL
NSN5310-00-078-2676
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 303801 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
30380-1Interchangeable
interchangeable cross-reference
interchangeable
1250-0186Interchangeable
interchangeable cross-reference
interchangeable
608.70Interchangeable
Diver's Dress
interchangeable
108381011Interchangeable
Diver's Dress
interchangeable
3038-2Interchangeable
interchangeable cross-reference
interchangeable
02191-1154-32Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 303801?
303801 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 303801?
There are 10 known substitutes for 303801: 30380-1, 1250-0186, 608.70 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 303801?
303801 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-078-2676. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026