PartsTable
Technical Data Sheet
PartsTable / COMPONENT / AN280-406
AN280-406 ✓ 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 1335 OVERALL, thickness: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN, key_height: 0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, circle_diameter: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, hardness_rating: 10.0 ROCKWELL C MINIMUM OVERALL, style_designator: ROUND BOTTOM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-3646, 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
AN280-406
NSN: 5315-00-010-3646
FSC: 5315
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 1335 OVERALL
thickness0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
key_height0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
circle_diameter0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
hardness_rating10.0 ROCKWELL C MINIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeROUND
key_size_designationWOODRUFF 7
starting_edge_radius0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
material_document_and_classificationSAE-1335 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-010-3646
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN280-406 · 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: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-1335 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
HARDNESS RATING: 10.0 ROCKWELL C MINIMUM OVERALL
•
STARTING EDGE RADIUS: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 7
•
MATERIAL: STEEL COMP 1335 OVERALL
•
STARTING EDGE SHAPE: ROUND
•
CIRCLE DIAMETER: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-1335 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING10.0 ROCKWELL C MINIMUM OVERALL
STARTING EDGE RADIUS0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 7
MATERIALSTEEL COMP 1335 OVERALL
STARTING EDGE SHAPEROUND
CIRCLE DIAMETER0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
STYLE DESIGNATORROUND BOTTOM
KEY HEIGHT0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
A52491-75Interchangeable
interchangeable cross-reference
interchangeable
701Interchangeable
interchangeable cross-reference
interchangeable
A2027Interchangeable
interchangeable cross-reference
interchangeable
AN6H7AInterchangeable
interchangeable cross-reference
interchangeable
4427Interchangeable
interchangeable cross-reference
interchangeable
3876840Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy AN280-406?
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 AN280-406?
AN280-406 is a KEY,WOODRUFF.
What parts can replace AN280-406?
There are 23 known substitutes for AN280-406: A52491-75, 701, A2027 and 20 more. Substitute compatibility should be verified for your specific system.
Is AN280-406 still available?
AN280-406 is currently cancelled.
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 — AN280-406

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