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PartsTable / COMPONENT / 5169866C0RK
5169866C0RK ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thickness: 0.0320 INCHES NOMINAL IN, hole_diameter: 0.265 INCHES NOMINAL IN, overall_diameter: 0.437 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-193-9715, 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
5169866C0RK
NSN: 5310-00-193-9715
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.0320 INCHES NOMINAL IN
hole_diameter0.265 INCHES NOMINAL IN
overall_diameter0.437 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-C-501 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-193-9715
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5169866C0RK · 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 DOCUMENT AND CLASSIFICATION: QQ-C-501 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OVERALL DIAMETER: 0.437 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.265 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.0320 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-501 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER0.437 INCHES NOMINAL IN
HOLE DIAMETER0.265 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.0320 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
81464Interchangeable
interchangeable cross-reference
interchangeable
CP-16Interchangeable
interchangeable cross-reference
interchangeable
620Interchangeable
interchangeable cross-reference
interchangeable
GKT594Interchangeable
interchangeable cross-reference
interchangeable
HL-21023 ITEM 1Interchangeable
interchangeable cross-reference
interchangeable
3HB913Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5169866C0RK?
5169866C0RK is a WASHER,FLAT.
What parts can replace 5169866C0RK?
There are 19 known substitutes for 5169866C0RK: 81464, CP-16, 620 and 16 more. Substitute compatibility should be verified for your specific system.
Is 5169866C0RK still available?
5169866C0RK 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