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Z663 ✓ 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: WOOL OVERALL, thickness: 0.094 INCHES NOMINAL IN, hole_diameter: 0.844 INCHES NOMINAL IN, overall_diameter: 1.094 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 5310-00-413-5609, 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
Z663
NSN: 5310-00-413-5609
FSC: 5310
CAGE: 10695 — TAYLOR-DUNN CORPORATION DBA METRO CROWN INTERNATIONAL (USA)
SPECIFICATIONS
materialWOOL OVERALL
thickness0.094 INCHES NOMINAL IN
hole_diameter0.844 INCHES NOMINAL IN
overall_diameter1.094 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-413-5609
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: Z663 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 1.094 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.844 INCHES NOMINAL IN
•
MATERIAL: WOOL OVERALL
•
THICKNESS: 0.094 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.094 INCHES NOMINAL IN
HOLE DIAMETER0.844 INCHES NOMINAL IN
MATERIALWOOL OVERALL
THICKNESS0.094 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
120702Interchangeable
interchangeable cross-reference
interchangeable
1020702Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3Interchangeable
interchangeable cross-reference
interchangeable
WWP521Interchangeable
interchangeable cross-reference
interchangeable
B16.3Interchangeable
interchangeable cross-reference
interchangeable
850808Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Z663?
Z663 is a WASHER,FLAT.
What parts can replace Z663?
There are 8 known substitutes for Z663: 120702, 1020702, ASME B16.3 and 5 more. Substitute compatibility should be verified for your specific system.
Is Z663 still available?
Z663 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