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Technical Data Sheet
PartsTable / COMPONENT / FV 766684-10
FV 766684-10 ✓ 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,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.250 INCHES NOMINAL IN, material: STEEL COMP 410 OVERALL, overall_length: 1.125 INCHES NOMINAL IN, hardness_rating: 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.9 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL, style_designator: SLOTTED, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-670-0541, 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
FV 766684-10
NSN: 5315-00-670-0541
FSC: 5315
CAGE: U0795 — QINETIQ (GBR)
SPECIFICATIONS
diameter0.250 INCHES NOMINAL IN
materialSTEEL COMP 410 OVERALL
overall_length1.125 INCHES NOMINAL IN
hardness_rating83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.9 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentPASSIVATE OVERALL
material_thickness0.048 INCHES NOMINAL IN
material_document_and_classificationAMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-670-0541
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FV 766684-10 · 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
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 410 OVERALL
•
HARDNESS RATING: 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.9 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
•
MATERIAL THICKNESS: 0.048 INCHES NOMINAL IN
•
DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPASSIVATE OVERALL
STYLE DESIGNATORSLOTTED
OVERALL LENGTH1.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 410 OVERALL
HARDNESS RATING83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.9 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
MATERIAL THICKNESS0.048 INCHES NOMINAL IN
DIAMETER0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
589807Interchangeable
interchangeable cross-reference
interchangeable
42P11700-5180Interchangeable
interchangeable cross-reference
interchangeable
MS171655Interchangeable
interchangeable cross-reference
interchangeable
FV 766684 ITEM 10Interchangeable
Same NIIN cross-reference
interchangeable
PS250-1125CRPA048Interchangeable
Same NIIN cross-reference
interchangeable
10122690Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FV 766684-10?
FV 766684-10 is a PIN,SPRING.
What parts can replace FV 766684-10?
There are 6 known substitutes for FV 766684-10: 589807, 42P11700-5180, MS171655 and 3 more. Substitute compatibility should be verified for your specific system.
Is FV 766684-10 still available?
FV 766684-10 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