PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 10-20688
10-20688 ✓ Verified by PartsTable
3M · 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 3M industrial component. Key specifications include material: STEEL COMP 2330 OVERALL, thickness: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN, key_height: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, circle_diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, style_designator: ROUND BOTTOM, starting_edge_shape: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-197-3411, 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
10-20688
NSN: 5315-00-197-3411
FSC: 5315
CAGE: 59501 — UNISON INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 2330 OVERALL
thickness0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
key_height0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
circle_diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF 213
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-197-3411
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-20688 · 3M ⚠ 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: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 213
•
STARTING EDGE SHAPE: STRAIGHT
•
KEY HEIGHT: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
•
CIRCLE DIAMETER: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 2330 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: ROUND BOTTOM
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 213
STARTING EDGE SHAPESTRAIGHT
KEY HEIGHT0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
CIRCLE DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
MATERIALSTEEL COMP 2330 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORROUND BOTTOM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
521000Interchangeable
interchangeable cross-reference
interchangeable
1-8X3-16Interchangeable
interchangeable cross-reference
interchangeable
214RInterchangeable
interchangeable cross-reference
interchangeable
X79217Interchangeable
interchangeable cross-reference
interchangeable
10386409Interchangeable
interchangeable cross-reference
interchangeable
1/8 X 3/8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 10-20688?
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 10-20688?
10-20688 is a KEY,WOODRUFF manufactured by 3M.
What parts can replace 10-20688?
There are 10 known substitutes for 10-20688: 521000, 1-8X3-16, 214R and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10-20688?
10-20688 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-197-3411. 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 — 10-20688

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