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8784220 ✓ 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,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: SILVER OVERALL, hole_diameter: 0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN, overall_height: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN, outside_diameter: 0.435 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN, material_thickness: 0.005 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-515-7329, 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
8784220
NSN: 5310-00-515-7329
FSC: 5310
CAGE: 19203 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV US ARMY RESEARCH, DEVELOPMENT AND ENGINEERING COMMAND ARMAMENT (USA)
SPECIFICATIONS
materialSILVER OVERALL
hole_diameter0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
overall_height0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
outside_diameter0.435 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
material_thickness0.005 INCHES NOMINAL IN
NSN5310-00-515-7329
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8784220 · 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
•
MATERIAL THICKNESS: 0.005 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
•
MATERIAL: SILVER OVERALL
•
OUTSIDE DIAMETER: 0.435 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.005 INCHES NOMINAL IN
HOLE DIAMETER0.191 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
MATERIALSILVER OVERALL
OUTSIDE DIAMETER0.435 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
OVERALL HEIGHT0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
517-1Interchangeable
interchangeable cross-reference
interchangeable
A234CARB0NSTEELGRADEAInterchangeable
interchangeable cross-reference
interchangeable
A234GRADEAInterchangeable
interchangeable cross-reference
interchangeable
ASAB16-9Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-11837Interchangeable
interchangeable cross-reference
interchangeable
CA53255-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8784220?
8784220 is a WASHER,SPRING TENSION.
What parts can replace 8784220?
There are 10 known substitutes for 8784220: 517-1, A234CARB0NSTEELGRADEA, A234GRADEA and 7 more. Substitute compatibility should be verified for your specific system.
Is 8784220 still available?
8784220 is currently cancelled.
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Last verified: July 2026