PartsTable
Technical Data Sheet
500371-3 ✓ 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

POLARIZING KEY,ELECTRICAL CONNEC. Key specifications include overall_length: 0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN, special_features: PLASTIC ACETAL;0.062 IN. DIA IN, fsc_application_data: DISK,BRAKE, end_item_identification: 1630010844227, reference_data_and_literature: T.O.4B1-2-1164, general_characteristics_item_description: STAINLESS STEEL;0.613 IN.

INSIDE WIDTH;3 RIVET HOLES 0.272 IN. DIA THROUGH BOTH SIDES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-725-7382, 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
500371-3
NSN: 5310-00-725-7382
FSC: 5310
CAGE: 11757 — PARKER HANNIFIN CORPORATION DIV CHELSEA PRODUCTS DIVISION (USA)
SPECIFICATIONS
overall_length0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
special_featuresPLASTIC ACETAL;0.062 IN. DIA IN
fsc_application_dataDISK,BRAKE
end_item_identification1630010844227
reference_data_and_literatureT.O.4B1-2-1164
general_characteristics_item_descriptionSTAINLESS STEEL;0.613 IN. INSIDE WIDTH;3 RIVET HOLES 0.272 IN. DIA THROUGH BOTH SIDES IN
NSN5310-00-725-7382
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 500371-3 · 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 18
6301Interchangeable
interchangeable cross-reference
interchangeable
MP0-0731Interchangeable
interchangeable cross-reference
interchangeable
60-3138Interchangeable
interchangeable cross-reference
interchangeable
543452Interchangeable
interchangeable cross-reference
interchangeable
0040391Interchangeable
interchangeable cross-reference
interchangeable
12BC03Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500371-3?
500371-3 is a POLARIZING KEY,ELECTRICAL CONNEC.
What parts can replace 500371-3?
There are 18 known substitutes for 500371-3: 6301, MP0-0731, 60-3138 and 15 more. Substitute compatibility should be verified for your specific system.
Is 500371-3 still available?
500371-3 is currently cancelled.
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