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K9511 ✓ 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 PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, first_end_style: SQUARE, pin_overall_length: 0.344 INCHES NOMINAL IN, pin_overall_diameter: 0.1250 INCHES NOMINAL IN, second_end_relationship_with_first_end: IDENTICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-609-8999, 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
K9511
NSN: 5315-00-609-8999
FSC: 5315
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
first_end_styleSQUARE
pin_overall_length0.344 INCHES NOMINAL IN
pin_overall_diameter0.1250 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-609-8999
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: K9511 · 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
•
PIN OVERALL DIAMETER: 0.1250 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
FIRST END STYLE: SQUARE
•
PIN OVERALL LENGTH: 0.344 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PIN OVERALL DIAMETER0.1250 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END STYLESQUARE
PIN OVERALL LENGTH0.344 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
S302-1016P12Interchangeable
interchangeable cross-reference
interchangeable
211SZInterchangeable
interchangeable cross-reference
interchangeable
480-9511Interchangeable
interchangeable cross-reference
interchangeable
A540Interchangeable
interchangeable cross-reference
interchangeable
9521Interchangeable
interchangeable cross-reference
interchangeable
575R482H01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K9511?
K9511 is a PIN,STRAIGHT,HEADLESS.
What parts can replace K9511?
There are 14 known substitutes for K9511: S302-1016P12, 211SZ, 480-9511 and 11 more. Substitute compatibility should be verified for your specific system.
Is K9511 still available?
K9511 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