The Castellated Nut AN320-9 is a specialized fastener designed for securing components in high-stress industrial applications. Its castellated design allows for secure locking with a cotter pin, preventing loosening under vibration and dynamic loads. Commonly used in aerospace, automotive, and machinery assemblies, it ensures reliable and safety-critical connections.This component is manufactured to the applicable MS, AN, or NAS specification, ensuring compliance with recognized military and aerospace dimensional, material, and performance requirements. Material certifications, Certificates of Conformance (CoC), and traceability are available where applicable.
hide-Asset:
2597P
hide-Quantity Increment:
1
note-Sold In:
Per Package
note-Units Per Package:
1
spec-Material:
Carbon Steel
note-Note:
Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.
hide-ItemID:
65324
spec-Thread Size:
9/16"-18
note-Industry Standards/Certification:
AN320
spec-Dimension H:
0.313"
spec-Type:
Shear Castellated
spec-Dimension A:
0.875"
spec-Dimension B:
1.016"
spec-Minimum Ultimate Tensile Strength (Steel):
11800 lb
spec-Dimension A Tolerance:
+0.002|-0.010"
spec-Thread T:
0.5625"-18
spec-Alternate Part Number:
Possible
spec-NSN:
5310-00-176-8113
spec-NIIN:
00-176-8113
hide-Part # Unpunctuated:
AN3209
note-Minimum Order Note:
Minimum order is 5. Must order in increments of 1.
note-Inventory Note:
Need additional stock? Call (877) 920-1876 or email
note-California Residents:
Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.
