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Technical Data Sheet
PartsTable / COMPONENT / 852591
852591 ✓ 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: CELLULOSE OVERALL, outside_diameter: 1.062 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.766 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-199-5742, 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
852591
NSN: 5310-00-199-5742
FSC: 5310
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialCELLULOSE OVERALL
outside_diameter1.062 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.766 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5310-00-199-5742
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 852591 · 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: MIL-P-20085 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: CELLULOSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.766 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
THICKNESS: 0.031 INCHES NOMINAL IN
•
OVERALL DIAMETER: 1.062 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-20085 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCELLULOSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.766 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
THICKNESS0.031 INCHES NOMINAL IN
OVERALL DIAMETER1.062 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
26878Interchangeable
interchangeable cross-reference
interchangeable
9412911Interchangeable
interchangeable cross-reference
interchangeable
9412908Interchangeable
interchangeable cross-reference
interchangeable
852591Interchangeable
interchangeable cross-reference
interchangeable
525K114Interchangeable
interchangeable cross-reference
interchangeable
MS27183-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 852591?
852591 is a WASHER,FLAT.
What parts can replace 852591?
There are 11 known substitutes for 852591: 26878, 9412911, 9412908 and 8 more. Substitute compatibility should be verified for your specific system.
Is 852591 still available?
852591 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