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Technical Data Sheet
PartsTable / COMPONENT / 0306482
0306482 ✓ 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: STEEL OVERALL, thickness: 0.052 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, hole_diameter: 0.261 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN, overall_diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, peripheral_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 5310-00-121-8408, 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
0306482
NSN: 5310-00-121-8408
FSC: 5310
CAGE: U1621 — SIMPSON-LAWRENCE LTD JOHNSON AND EVI RUDE OUTBOARD MOTORS (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.052 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
hole_diameter0.261 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
overall_diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-121-8408
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0306482 · 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
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.261 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.052 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
HOLE DIAMETER0.261 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.052 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AN960-416Interchangeable
interchangeable cross-reference
interchangeable
903977Interchangeable
interchangeable cross-reference
interchangeable
NAS1149F0463PInterchangeable
interchangeable cross-reference
interchangeable
306482Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0306482?
0306482 is a WASHER,FLAT.
What parts can replace 0306482?
There are 4 known substitutes for 0306482: AN960-416, 903977, NAS1149F0463P and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0306482?
0306482 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-121-8408. 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