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PartsTable / COMPONENT / H260K213
H260K213 ✓ 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 COMP 9R2 OVERALL, thickness: 0.250 INCHES NOMINAL IN, hole_diameter: 2.375 INCHES NOMINAL IN, overall_diameter: 3.375 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-374-4058, 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
H260K213
NSN: 5310-00-374-4058
FSC: 5310
CAGE: 63728 — SEALCRAFT CORPORATION (USA)
SPECIFICATIONS
materialWOOL COMP 9R2 OVERALL
thickness0.250 INCHES NOMINAL IN
hole_diameter2.375 INCHES NOMINAL IN
overall_diameter3.375 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
minimum_tensile_strength200 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationC-F-206,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-374-4058
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H260K213 · 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
•
HOLE DIAMETER: 2.375 INCHES NOMINAL IN
•
MATERIAL: WOOL COMP 9R2 OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
THICKNESS: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: C-F-206,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 3.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER2.375 INCHES NOMINAL IN
MATERIALWOOL COMP 9R2 OVERALL
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONC-F-206,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER3.375 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH200 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
WW324-12Interchangeable
interchangeable cross-reference
interchangeable
743440Interchangeable
interchangeable cross-reference
interchangeable
RT6684Interchangeable
interchangeable cross-reference
interchangeable
42850Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H260K213?
H260K213 is a WASHER,FLAT.
What parts can replace H260K213?
There are 4 known substitutes for H260K213: WW324-12, 743440, RT6684 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H260K213?
H260K213 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-374-4058. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026