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PartsTable / COMPONENT / 5/8 LOCKWASHER
5/8 LOCKWASHER ✓ 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 5/8 LOCKWASHER is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-317-0765, 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
5/8 LOCKWASHER
NSN: 5310-00-317-0765
FSC: 5310
CAGE: 52033 — DRC ACQUISITION INC (USA)
SPECIFICATIONS
Part Number5/8 LOCKWASHER
NSN5310-00-317-0765
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5/8 LOCKWASHER · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
HOLE DIAMETER: 0.628 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.165 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.045 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HOLE DIAMETER0.628 INCHES NOMINAL IN
MATERIAL THICKNESS0.165 INCHES NOMINAL IN
OUTSIDE DIAMETER1.045 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
40081420Interchangeable
interchangeable cross-reference
interchangeable
TH163Interchangeable
interchangeable cross-reference
interchangeable
F2242-000793Interchangeable
interchangeable cross-reference
interchangeable
55104Interchangeable
interchangeable cross-reference
interchangeable
98801Interchangeable
interchangeable cross-reference
interchangeable
607151Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5/8 LOCKWASHER?
5/8 LOCKWASHER is a 5/8 LOCKWASHER.
What parts can replace 5/8 LOCKWASHER?
There are 19 known substitutes for 5/8 LOCKWASHER: 40081420, TH163, F2242-000793 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5/8 LOCKWASHER?
5/8 LOCKWASHER is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-317-0765. 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