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Technical Data Sheet
PartsTable / COMPONENT / PL4416-121H FIND NO. 66
PL4416-121H FIND NO. 66 ✓ 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 PL4416-121H FIND NO. 66 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-616-5522, 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
PL4416-121H FIND NO. 66
NSN: 5315-00-616-5522
FSC: 5315
CAGE: 63600 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV CURTISS-WRIGHT / NU-TORQUE (USA)
SPECIFICATIONS
Part NumberPL4416-121H FIND NO. 66
NSN5315-00-616-5522
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PL4416-121H FIND NO. 66 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
106751Interchangeable
interchangeable cross-reference
interchangeable
5195085Interchangeable
interchangeable cross-reference
interchangeable
944562Interchangeable
interchangeable cross-reference
interchangeable
0-12429Interchangeable
interchangeable cross-reference
interchangeable
0-11744Interchangeable
interchangeable cross-reference
interchangeable
04306-0660Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PL4416-121H FIND NO. 66?
PL4416-121H FIND NO. 66 is a PL4416-121H FIND NO. 66.
What parts can replace PL4416-121H FIND NO. 66?
There are 31 known substitutes for PL4416-121H FIND NO. 66: 106751, 5195085, 944562 and 28 more. Substitute compatibility should be verified for your specific system.
Is PL4416-121H FIND NO. 66 still available?
PL4416-121H FIND NO. 66 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