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Technical Data Sheet
PartsTable / COMPONENT / AN280-607
AN280-607 ✓ 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 4130 OR STEEL COMP 8630 OVERALL, thickness: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, key_height: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, circle_diameter: 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL, style_designator: ROUND BOTTOM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-543-3877, 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
AN280-607
NSN: 5315-00-543-3877
FSC: 5315
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
thickness0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
key_height0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
circle_diameter0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF 11
NSN5315-00-543-3877
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN280-607 · 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: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
•
KEY HEIGHT: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
CIRCLE DIAMETER: 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND BOTTOM
•
MATERIAL: STEEL OVERALL
•
STARTING EDGE SHAPE: STRAIGHT
•
KEY SIZE DESIGNATION: WOODRUFF 11
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
KEY HEIGHT0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
CIRCLE DIAMETER0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
STYLE DESIGNATORROUND BOTTOM
MATERIALSTEEL OVERALL
STARTING EDGE SHAPESTRAIGHT
KEY SIZE DESIGNATIONWOODRUFF 11
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
AN280-607Interchangeable
interchangeable cross-reference
interchangeable
B3858-8Interchangeable
interchangeable cross-reference
interchangeable
MS35756-14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN280-607?
AN280-607 is a KEY,WOODRUFF.
What parts can replace AN280-607?
There are 3 known substitutes for AN280-607: AN280-607, B3858-8, MS35756-14. Substitute compatibility should be verified for your specific system.
Is AN280-607 still available?
AN280-607 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