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Technical Data Sheet
PartsTable / COMPONENT / 221416
221416 ✓ Verified by PartsTable
DELL · 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

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This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1014, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
221416
NSN: 5310-00-013-1014
FSC: 5310
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.049 INCHES NOMINAL IN
hole_diameter0.156 INCHES NOMINAL IN
overall_diameter0.375 INCHES NOMINAL IN
surface_treatmentCADMIUM OR ZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-013-1014
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 221416 · DELL ⚠ 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.156 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
THICKNESS: 0.049 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL OVERALL
HOLE DIAMETER0.156 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.049 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
131-0014-00Interchangeable
interchangeable cross-reference
interchangeable
91-3RMInterchangeable
interchangeable cross-reference
interchangeable
C3MInterchangeable
interchangeable cross-reference
interchangeable
131014Interchangeable
interchangeable cross-reference
interchangeable
10121874Interchangeable
interchangeable cross-reference
interchangeable
FF-W-92Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221416?
221416 is a WASHER,FLAT manufactured by DELL.
What parts can replace 221416?
There are 12 known substitutes for 221416: 131-0014-00, 91-3RM, C3M and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 221416?
221416 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1014. 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