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373886 ✓ 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

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, thickness: 0.0197 INCHES MINIMUM AND 0.0297 INCHES MAXIMUM IN, hole_diameter: 0.377 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN, overall_diameter: 0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-4540, 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
373886
NSN: 5310-00-274-4540
FSC: 5310
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
thickness0.0197 INCHES MINIMUM AND 0.0297 INCHES MAXIMUM IN
hole_diameter0.377 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN
overall_diameter0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-274-4540
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 373886 · 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: 0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.0197 INCHES MINIMUM AND 0.0297 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.377 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.0197 INCHES MINIMUM AND 0.0297 INCHES MAXIMUM IN
HOLE DIAMETER0.377 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
MATERIALALUMINUM ALLOY OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
01642Interchangeable
interchangeable cross-reference
interchangeable
34BX4C44Interchangeable
interchangeable cross-reference
interchangeable
34BX4C44V11G2Interchangeable
interchangeable cross-reference
interchangeable
7-904Interchangeable
interchangeable cross-reference
interchangeable
45278Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 373886?
373886 is a WASHER,FLAT.
What parts can replace 373886?
There are 5 known substitutes for 373886: 01642, 34BX4C44, 34BX4C44V11G2 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 373886?
373886 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-4540. 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