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A264-19 ✓ 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 KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, thickness: 0.188 INCHES NOMINAL IN, key_height: 0.369 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, circle_diameter: 0.875 INCHES NOMINAL IN, style_designator: ROUND BOTTOM, starting_edge_shape: 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 5315-00-231-2114, 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
A264-19
NSN: 5315-00-231-2114
FSC: 5315
CAGE: 64392 — WEIL PUMP CO INC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
thickness0.188 INCHES NOMINAL IN
key_height0.369 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
circle_diameter0.875 INCHES NOMINAL IN
style_designatorROUND BOTTOM
starting_edge_shapeROUND
key_size_designationWOODRUFF 11
starting_edge_radius0.010 INCHES NOMINAL IN
NSN5315-00-231-2114
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A264-19 · 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
•
CIRCLE DIAMETER: 0.875 INCHES NOMINAL IN
•
KEY HEIGHT: 0.369 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
STARTING EDGE RADIUS: 0.010 INCHES NOMINAL IN
•
KEY SIZE DESIGNATION: WOODRUFF 11
•
THICKNESS: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND BOTTOM
•
MATERIAL: STEEL COMP 303 OVERALL
•
STARTING EDGE SHAPE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CIRCLE DIAMETER0.875 INCHES NOMINAL IN
KEY HEIGHT0.369 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
STARTING EDGE RADIUS0.010 INCHES NOMINAL IN
KEY SIZE DESIGNATIONWOODRUFF 11
THICKNESS0.188 INCHES NOMINAL IN
STYLE DESIGNATORROUND BOTTOM
MATERIALSTEEL COMP 303 OVERALL
STARTING EDGE SHAPEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
16301145-001Interchangeable
interchangeable cross-reference
interchangeable
301145Interchangeable
interchangeable cross-reference
interchangeable
351872Interchangeable
interchangeable cross-reference
interchangeable
654825-1Interchangeable
interchangeable cross-reference
interchangeable
3001-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A264-19?
A264-19 is a KEY,WOODRUFF.
What parts can replace A264-19?
There are 5 known substitutes for A264-19: 16301145-001, 301145, 351872 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A264-19?
A264-19 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-231-2114. 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