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MS51830

MS51830 threaded inserts are self-locking helical coil inserts engineered to provide strong, wear-resistant internal threads in aerospace and high-performance applications. Manufactured to Military Standard (MS) specifications, these inserts are designed to reinforce threads in softer materials such as aluminum, magnesium, and composites while adding a prevailing torque locking feature to resist loosening under vibration. Commonly used in aircraft structures, engine components, avionics housings, and defense systems, MS51830 inserts deliver both thread durability and secure fastening in environments where reliability is critical.

Key Features & Benefits:

  • Self-locking design provides prevailing torque to resist vibration-induced loosening
  • Reinforces threads in low-strength materials, extending service life
  • Manufactured to MS51830 military specification for consistent quality and performance
  • Corrosion-resistant materials support use in harsh environments
  • Reduces the need for additional locking devices such as locknuts or adhesives
  • Lightweight solution ideal for aerospace and weight-sensitive applications
  • Maintains thread integrity through repeated installation and removal
  • Suitable for high-vibration and high-stress applications
Product #: MS51830
Item Name Alternates  
MS51830-101217-076283, KNCA0256J
MS51830-101L217-077283
MS51830-102217-076284
MS51830-102L217-077284
MS51830-103217-076285
MS51830-103L217-077285
MS51830-104217-076286, KNCA0832J
MS51830-104L217-077286, KNCAL0832J
MS51830-105217-076321, KN1024J
MS51830-105L217-077321, K9005-1024
MS51830-106217-076322
MS51830-106L217-077322, K9005-420
MS51830-107217-076323
MS51830-107L217-077323, K9005-518
MS51830-108217-076324
MS51830-108L217-077324
MS51830-109217-076325
MS51830-109L217-077325
MS51830-110217-076326
MS51830-110L217-077326
MS51830-202L217-077522, KNL428J, NAS1394C4L
MS51830-203L217-077523, K9005-5, NAS1394C5L
MS51830-204L215-077524, 217-077524, K9005-6, NAS1394C6L
MS51830-205L217-077525, K9005-7, NAS1394C7L
MS51830A102217-080284, K9900-04
MS51830A102L217-081284
MS51830A103217-080285
MS51830A103L217-081285
MS51830A104217-080286
MS51830A104L217-081286
MS51830A105217-080321
MS51830A105L217-081321, K9000-1024
MS51830A106217-080322
MS51830A107L217-081323, K9000-518
MS51830A108217-080324
MS51830A108LK9000-616
MS51830A109217-080325
MS51830A110217-080326
MS51830A110LK9000-813
MS51830A201K9900-3
MS51830A203K9900-5
MS51830A203L217-081523, NAS1394-5L
MS51830A204K9900-6
MS51830A205LK9000-7
MS51830A206217-080526, K9900-8, NAS1394-8
MS51830A206L217-081526, NAS1394-8L
MS51830CA101217-078283
MS51830CA101L217-079283
MS51830CA102217-078284
MS51830CA102L217-079284
MS51830CA103217-078285, ST1030-0632
MS51830CA103L217-079285, KNCL0632JT
MS51830CA104217-078286, ST1030-0832
MS51830CA104L217-079286
MS51830CA105217-078321
MS51830CA105L217-079321
MS51830CA106217-078322
MS51830CA106L217-079322, K9001-420
MS51830CA107217-078323
MS51830CA108217-078324
MS51830CA108L217-079324
MS51830CA110217-078326
MS51830CA110L217-079326

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