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Technical Data Sheet
PartsTable / COMPONENT / 79NM02
79NM02 ✓ 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 end_item_identification: KC-46A AIRCRAFT A, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-208-9255, 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
79NM02
NSN: 5310-00-208-9255
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
end_item_identificationKC-46A AIRCRAFT A
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN5310-00-208-9255
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 79NM02 · 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
•
COUNTERSINK ANGLE: 88.0 DEGREES NOMINAL NUT
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
WIDTH ACROSS FLATS: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
TECHNICAL CHARACTERISTICS (FLIS)
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.190 INCHES IN
WIDTH ACROSS FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMRAP - COUGAR AMBULANCE; MEDIUM MINE PROTECTED VEHICLE - MMPV; MRAP BUFFALO MK2A2; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
THREAD QUANTITY PER INCH32
BEARING SURFACE FINISH125.0 MICROINCHES
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPASSIVATE OVERALL EXCEPT INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
1033Interchangeable
interchangeable cross-reference
interchangeable
A52491-93Interchangeable
interchangeable cross-reference
interchangeable
LESS0NInterchangeable
interchangeable cross-reference
interchangeable
118607Interchangeable
interchangeable cross-reference
interchangeable
35FFUSEInterchangeable
interchangeable cross-reference
interchangeable
MIL-N-25027Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 79NM02?
79NM02 is a NUT,PLAIN,HEXAGON.
What parts can replace 79NM02?
There are 23 known substitutes for 79NM02: 1033, A52491-93, LESS0N and 20 more. Substitute compatibility should be verified for your specific system.
Is 79NM02 still available?
79NM02 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