The Castellated Nut MS17826-4 is a specialized fastener designed to secure components in machinery and structural assemblies. Its unique notched design allows for locking with a cotter pin or wire, ensuring reliable torque retention in high-vibration environments. Commonly used in automotive, aerospace, and industrial equipment, this nut provides enhanced safety and stability in critical applications.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:
2900P
hide-Quantity Increment:
10
note-Sold In:
Per Package
note-Units Per Package:
1
note-Note:
Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.
hide-ItemID:
65598
spec-Thread Size:
1/4"-28
spec-Features:
Low Height
note-Industry Standards/Certification:
MIL-S-8879|MS17826
spec-Minimum Dimension A:
0.173"
spec-Type:
Self-Locking Castellated Nut
spec-Thread MIL-S-8879:
0.2500-28
spec-Minimum Ultimate Tensile Strength:
1800 lb
spec-Minimum Test Wrenching Torque:
45 in·lb
spec-Maximum Dimension A:
0.203"
spec-Minimum Dimension B:
0.43"
spec-Minimum Dimension C:
0.482"
spec-Maximum Dimension B:
0.439"
spec-Alternate Part Number:
F12NTEC-0428
hide-Part # Unpunctuated:
MS178264
note-Minimum Order Note:
Minimum order is 10. Must order in increments of 10.
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.