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PartsTable / COMPONENT / 380166
380166 ✓ 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

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include material: STEEL COMP 1010 OVERALL, thickness: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, hole_diameter: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN, overall_diameter: 1.490 INCHES MINIMUM AND 1.510 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 5310-00-521-4534, 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
380166
NSN: 5310-00-521-4534
FSC: 5310
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
thickness0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
hole_diameter0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
overall_diameter1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-521-4534
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 380166 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 1010 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THICKNESS: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 1010 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THICKNESS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
OVERALL DIAMETER1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1276-19-224Interchangeable
interchangeable cross-reference
interchangeable
A-A-59125/02Interchangeable
interchangeable cross-reference
interchangeable
N30384Interchangeable
Same NIIN cross-reference
interchangeable
31W267Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 380166?
380166 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 380166?
There are 4 known substitutes for 380166: 1276-19-224, A-A-59125/02, N30384 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 380166?
380166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-521-4534. 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