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NL18 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_item_identification: NSN 2320-01-549-8577, TWO WASHERS GLUED TOGETHER, asbestos_content_percentage: 0.0 NOMINAL, part_name_assigned_by_controlling_agency: WASHER,NORDLOCK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-575-3786, 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
NL18
NSN: 5310-01-575-3786
FSC: 5310
CAGE: 6Y603 — FABORY USA LTD. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_item_identificationNSN 2320-01-549-8577, TWO WASHERS GLUED TOGETHER
asbestos_content_percentage0.0 NOMINAL
part_name_assigned_by_controlling_agencyWASHER,NORDLOCK
NSN5310-01-575-3786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NL18 · 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
•
ASBESTOS CONTENT PERCENTAGE: 0.0 NOMINAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ASBESTOS CONTENT PERCENTAGE0.0 NOMINAL
END ITEM IDENTIFICATIONNSN 2320-01-549-8577, TWO WASHERS GLUED TOGETHER
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,NORDLOCK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
NL8Interchangeable
interchangeable cross-reference
interchangeable
12422608-009Interchangeable
interchangeable cross-reference
interchangeable
1NL10Interchangeable
interchangeable cross-reference
interchangeable
NL10Interchangeable
interchangeable cross-reference
interchangeable
12422608Interchangeable
interchangeable cross-reference
interchangeable
12422608-016Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NL18?
NL18 is a WASHER,LOCK.
What parts can replace NL18?
There are 21 known substitutes for NL18: NL8, 12422608-009, 1NL10 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NL18?
NL18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-575-3786. 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