PartsTable
Technical Data Sheet
PartsTable / COMPONENT / WK784
WK784 ✓ 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 2330 OR STEEL COMP 2340 OVERALL, thickness: 0.250 INCHES NOMINAL IN, key_height: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, circle_diameter: 0.875 INCHES NOMINAL IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL, style_designator: ROUND BOTTOM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-012-4551, 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
WK784
NSN: 5315-00-012-4551
FSC: 5315
CAGE: 72540 — DAYTON-WALTHER CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 2330 OR STEEL COMP 2340 OVERALL
thickness0.250 INCHES NOMINAL IN
key_height0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
circle_diameter0.875 INCHES NOMINAL IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF A
material_document_and_classificationQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5315-00-012-4551
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: WK784 · 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
•
THICKNESS: 0.250 INCHES NOMINAL IN
•
KEY SIZE DESIGNATION: WOODRUFF A
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: ROUND BOTTOM
•
STARTING EDGE SHAPE: STRAIGHT
•
MATERIAL: STEEL COMP 2330 OR STEEL COMP 2340 OVERALL
•
KEY HEIGHT: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.250 INCHES NOMINAL IN
KEY SIZE DESIGNATIONWOODRUFF A
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORROUND BOTTOM
STARTING EDGE SHAPESTRAIGHT
MATERIALSTEEL COMP 2330 OR STEEL COMP 2340 OVERALL
KEY HEIGHT0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
CIRCLE DIAMETER0.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
0911021-4Interchangeable
interchangeable cross-reference
interchangeable
AN280-1012Interchangeable
interchangeable cross-reference
interchangeable
39052DInterchangeable
interchangeable cross-reference
interchangeable
424614Interchangeable
interchangeable cross-reference
interchangeable
124551Interchangeable
interchangeable cross-reference
interchangeable
120846Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy WK784?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is WK784?
WK784 is a KEY,WOODRUFF.
What parts can replace WK784?
There are 10 known substitutes for WK784: 0911021-4, AN280-1012, 39052D and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WK784?
WK784 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-012-4551. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — WK784

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026