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650559 ✓ 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 SEAL,PLAIN is a the manufacturer industrial component. Key specifications include special_features: ITEM IS FAA CERTIFIED, end_item_identification: KC-46 AIRCRAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-922-6027, 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
650559
NSN: 5315-00-922-6027
FSC: 5315
CAGE: 72357 — DUO-FAST CORP (USA)
SPECIFICATIONS
special_featuresITEM IS FAA CERTIFIED
end_item_identificationKC-46 AIRCRAFT
NSN5315-00-922-6027
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 650559 · 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
•
FASTENER LENGTH: 3.250 INCHES NOMINAL IN
•
FABRICATION METHOD: COLD FORMED
•
SHANK DIAMETER: 0.135 INCHES NOMINAL IN
•
SHANK STYLE: SMOOTH ROUND
•
DECORATIVE HEAD: NO
•
STERILIZED: NO
•
POINT STYLE: DIAMOND
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH3.250 INCHES NOMINAL IN
FABRICATION METHODCOLD FORMED
SHANK DIAMETER0.135 INCHES NOMINAL IN
SHANK STYLESMOOTH ROUND
DECORATIVE HEADNO
SPECIAL FEATURESSTRIP COHERED REQUIREMENT
STERILIZEDNO
POINT STYLEDIAMOND
HEAD STYLEFLAT
HEAD DIAMETER0.280 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
SF70-8Interchangeable
interchangeable cross-reference
interchangeable
4F9364Interchangeable
interchangeable cross-reference
interchangeable
358228Interchangeable
interchangeable cross-reference
interchangeable
5110-00-222-4400Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-751Interchangeable
interchangeable cross-reference
interchangeable
210-1524Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 650559?
650559 is a SEAL,PLAIN.
What parts can replace 650559?
There are 18 known substitutes for 650559: SF70-8, 4F9364, 358228 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 650559?
650559 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-922-6027. 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