PartsTable
Technical Data Sheet
LKS440-2 ✓ 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,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CLINCH, nut_height: 0.096 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF, nut_diameter: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-053-1366, 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
LKS440-2
NSN: 5310-00-053-1366
FSC: 5310
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleCLINCH
nut_height0.096 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
nut_diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
pilot_length0.049 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.161 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
hardness_rating70.0 ROCKWELL C MINIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
NSN5310-00-053-1366
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: LKS440-2 · 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 QUANTITY PER INCH: 40
NUT HEIGHT: 0.189 INCHES NOMINAL IN
THREAD DIRECTION: RIGHT-HAND
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
NUT STYLE: CLINCH
HARDNESS RATING: 70.0 ROCKWELL C MINIMUM
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH40
NUT HEIGHT0.189 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT STYLECLINCH
HARDNESS RATING70.0 ROCKWELL C MINIMUM
NOMINAL THREAD SIZE0.112 INCHES IN
PILOT DIAMETER0.185 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
515618Interchangeable
interchangeable cross-reference
interchangeable
10122031Interchangeable
interchangeable cross-reference
interchangeable
201481-11Interchangeable
interchangeable cross-reference
interchangeable
M45938/7-2Interchangeable
interchangeable cross-reference
interchangeable
4132686-01Interchangeable
interchangeable cross-reference
interchangeable
4132686Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LKS440-2?
LKS440-2 is a NUT,PLAIN,CLINCH.
What parts can replace LKS440-2?
There are 13 known substitutes for LKS440-2: 515618, 10122031, 201481-11 and 10 more. Substitute compatibility should be verified for your specific system.
Is LKS440-2 still available?
LKS440-2 is currently cancelled.
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