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565784 ✓ 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 NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 OVERALL, nut_style: HEXAGON, nut_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, thread_series: UNEF, special_features: SEMIFINISHED BEARING SURFACE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-7786, 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
565784
NSN: 5310-00-274-7786
FSC: 5310
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
materialSTEEL COMP 1212 OVERALL
nut_styleHEXAGON
nut_height0.312 INCHES NOMINAL IN
thread_class2A A
thread_seriesUNEF
special_featuresSEMIFINISHED BEARING SURFACE
thread_directionRIGHT-HAND
width_across_flats1.125 INCHES NOMINAL IN
nominal_thread_size0.875 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch20
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-274-7786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 565784 · 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
•
NUT STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
BEARING SURFACE TYPE: WASHER FACED
•
THREAD SERIES: UNEF
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
THREAD QUANTITY PER INCH: 20
•
NUT HEIGHT: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
BEARING SURFACE TYPEWASHER FACED
THREAD SERIESUNEF
SPECIAL FEATURESSEMIFINISHED BEARING SURFACE
NOMINAL THREAD SIZE0.875 INCHES IN
THREAD QUANTITY PER INCH20
NUT HEIGHT0.312 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1212 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
L1206Interchangeable
interchangeable cross-reference
interchangeable
206MInterchangeable
interchangeable cross-reference
interchangeable
B6935Interchangeable
interchangeable cross-reference
interchangeable
163070Interchangeable
interchangeable cross-reference
interchangeable
808138Interchangeable
interchangeable cross-reference
interchangeable
04718Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 565784?
565784 is a NUT,PLAIN,HEXAGON.
What parts can replace 565784?
There are 23 known substitutes for 565784: L1206, 206M, B6935 and 20 more. Substitute compatibility should be verified for your specific system.
Is 565784 still available?
565784 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