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W518 ✓ 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 PIN,COTTER is a the manufacturer industrial component. Key specifications include diameter: 0.094 INCHES NOMINAL IN, material: STEEL, end_style: VERTEX CENTER OR ABOVE, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 0.382 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-8629, 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
W518
NSN: 5315-00-010-8629
FSC: 5315
CAGE: 62265 — VOLVO TRUCKS NORTH AMERICA, INC. DBA (FOREIGN PARENT IS VOLVO LASTVAGNAR AB, GOTEBORG, SWEDEN.) (USA)
SPECIFICATIONS
diameter0.094 INCHES NOMINAL IN
materialSTEEL
end_styleVERTEX CENTER OR ABOVE
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter0.382 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN
major_thickness0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
outside_diameter0.582 INCHES NOMINAL IN
style_designatorSTANDARD
underloop_length0.875 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUNDED CORNERS
NSN5315-00-010-8629
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: W518 · 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 DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: STANDARD
•
DIAMETER: 0.094 INCHES NOMINAL IN
•
UNDERLOOP LENGTH: 0.875 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1008 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSTANDARD
DIAMETER0.094 INCHES NOMINAL IN
UNDERLOOP LENGTH0.875 INCHES NOMINAL IN
MATERIALSTEEL COMP 1008 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
0125000002Interchangeable
interchangeable cross-reference
interchangeable
NMP278PC51Interchangeable
interchangeable cross-reference
interchangeable
8332245Interchangeable
interchangeable cross-reference
interchangeable
202729-3420Interchangeable
interchangeable cross-reference
interchangeable
2520000402340Interchangeable
interchangeable cross-reference
interchangeable
5152Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W518?
W518 is a PIN,COTTER.
What parts can replace W518?
There are 21 known substitutes for W518: 0125000002, NMP278PC51, 8332245 and 18 more. Substitute compatibility should be verified for your specific system.
Is W518 still available?
W518 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026