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4KK492 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4KK492: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include overall_diameter: 5.3 MILLIMETERS NOMINAL MM, special_features: NHA IS OUTER BOOM ASSY, P/N 4KK650; M5 THREAD;SPECIFIC TREATMENT IS DACROMET 500B BLACK, surface_treatment: PAINT OVERALL, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, end_item_identification: HIMARS, RSV, MK37, 2320-01-504-5218. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-526-0803, 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
4KK492
NSN: 5310-01-526-0803
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
overall_diameter5.3 MILLIMETERS NOMINAL MM
special_featuresNHA IS OUTER BOOM ASSY, P/N 4KK650; M5 THREAD;SPECIFIC TREATMENT IS DACROMET 500B BLACK
surface_treatmentPAINT OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationHIMARS, RSV, MK37, 2320-01-504-5218
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyWASHER
NSN5310-01-526-0803
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4KK492 · 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
•
OVERALL DIAMETER: 5.3 MILLIMETERS NOMINAL MM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
COLOR: BLACK OVERALL
•
SURFACE TREATMENT: PAINT OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER5.3 MILLIMETERS NOMINAL MM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
COLORBLACK OVERALL
SPECIAL FEATURESNHA IS OUTER BOOM ASSY, P/N 4KK650; M5 THREAD;SPECIFIC TREATMENT IS DACROMET 500B BLACK
SURFACE TREATMENTPAINT OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER
END ITEM IDENTIFICATIONHIMARS, RSV, MK37, 2320-01-504-5218
CENTER HOLE SHAPE STYLEROUND
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
182-9475Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4KK492?
4KK492 is a WASHER,FLAT.
What parts can replace 4KK492?
There is 1 known substitute for 4KK492: 182-9475. Substitute compatibility should be verified for your specific system.
What is the NSN for 4KK492?
4KK492 is cataloged in the U.S. Government catalog under NSN 5310-01-526-0803. This indicates validated use in U.S. government and defense supply chains.
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