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12Z3010-8 ✓ 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: COPPER ALLOY OVERALL, hole_diameter: 0.375 INCHES NOMINAL IN, outside_diameter: 0.692 INCHES NOMINAL IN, style_designator: FLAT INTERNAL TEETH, surface_treatment: TIN OVERALL, material_thickness: 0.036 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-8669, 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
12Z3010-8
NSN: 5310-00-274-8669
FSC: 5310
CAGE: 94135 — NAVAL ORDNANCE STANDARDS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.375 INCHES NOMINAL IN
outside_diameter0.692 INCHES NOMINAL IN
style_designatorFLAT INTERNAL TEETH
surface_treatmentTIN OVERALL
material_thickness0.036 INCHES NOMINAL IN
NSN5310-00-274-8669
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12Z3010-8 · 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
•
OUTSIDE DIAMETER: 0.692 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.036 INCHES NOMINAL IN
•
SURFACE TREATMENT: TIN OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.692 INCHES NOMINAL IN
STYLE DESIGNATORFLAT INTERNAL TEETH
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.375 INCHES NOMINAL IN
MATERIAL THICKNESS0.036 INCHES NOMINAL IN
SURFACE TREATMENTTIN OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
12Z3010-31Interchangeable
interchangeable cross-reference
interchangeable
1920Interchangeable
interchangeable cross-reference
interchangeable
AN936A616BInterchangeable
interchangeable cross-reference
interchangeable
MS35333-93Interchangeable
Same NIIN cross-reference
interchangeable
A18041-20Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12Z3010-8?
12Z3010-8 is a WASHER,LOCK.
What parts can replace 12Z3010-8?
There are 5 known substitutes for 12Z3010-8: 12Z3010-31, 1920, AN936A616B and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12Z3010-8?
12Z3010-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-8669. 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