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Technical Data Sheet

KF2-440-C — Technical Data Sheet

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· 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,SPLINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SPLINE, nut_height: 0.130 INCHES MAXIMUM IN, nut_diameter: 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN, pilot_length: 0.060 INCHES MAXIMUM IN, thread_class: 2B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-448-6749, 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
KF2-440-C
NSN: 5310-00-448-6749
FSC: 5310
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSPLINE
nut_height0.130 INCHES MAXIMUM IN
nut_diameter0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
pilot_length0.060 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.177 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
nominal_thread_size0.112 INCHES IN
end_item_identificationAIRCRAFT, ORION P-3,AIRCRAFT, HORNET F/A-18
NSN5310-00-448-6749
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: KF2-440-C · 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
THREAD DIRECTION: RIGHT-HAND
MATERIAL: STEEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
NUT DIAMETER: 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 40
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE: 0.112 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT DIAMETER0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH40
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.112 INCHES IN
THREAD CLASS2B
PILOT LENGTH0.060 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
108703Interchangeable
interchangeable cross-reference
interchangeable
205A134Interchangeable
interchangeable cross-reference
interchangeable
10121390Interchangeable
Same NIIN cross-reference
interchangeable
KF2-440C1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KF2-440-C?
KF2-440-C is a NUT,PLAIN,SPLINE.
What parts can replace KF2-440-C?
There are 4 known substitutes for KF2-440-C: 108703, 205A134, 10121390 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KF2-440-C?
KF2-440-C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-448-6749. This indicates validated use in U.S. government and defense supply chains.
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