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PartsTable / COMPONENT / 766E
766E ✓ 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 COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OVERALL, hole_diameter: 0.688 INCHES NOMINAL IN, outside_diameter: 1.250 INCHES NOMINAL IN, style_designator: FLAT INTERNAL TEETH, material_thickness: 0.090 INCHES NOMINAL IN, material_document_and_classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-382-8969, 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
766E
NSN: 5310-00-382-8969
FSC: 5310
CAGE: 77237 — DANA OFF HIGHWAY PRODUCTS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OVERALL
hole_diameter0.688 INCHES NOMINAL IN
outside_diameter1.250 INCHES NOMINAL IN
style_designatorFLAT INTERNAL TEETH
material_thickness0.090 INCHES NOMINAL IN
material_document_and_classificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-382-8969
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 766E · 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
•
HOLE DIAMETER: 0.688 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL THICKNESS: 0.090 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.688 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL THICKNESS0.090 INCHES NOMINAL IN
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
STYLE DESIGNATORFLAT INTERNAL TEETH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
4009Interchangeable
interchangeable cross-reference
interchangeable
TM-341Interchangeable
interchangeable cross-reference
interchangeable
MVT61629-475Interchangeable
interchangeable cross-reference
interchangeable
100867Interchangeable
interchangeable cross-reference
interchangeable
18284Interchangeable
interchangeable cross-reference
interchangeable
MS35191-270Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 766E?
766E is a WASHER,LOCK.
What parts can replace 766E?
There are 8 known substitutes for 766E: 4009, TM-341, MVT61629-475 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 766E?
766E is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-382-8969. 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