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Locked In Stud

Model / MPN: MS51989-104-15 | NSN: 5307-01-435-9769
ITAR Registered seal

A headless fastener externally threaded on both ends with each threaded portion of one but not necessarily the same diameter. It is designed to be locked in place by either a ring, lock, serrated or a ring, lock, keyed.

Product Details
NATO Stock Number
5307-01-435-9769
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a nut thread
Thread Pitch Diameters
+0.2187/+0.2204 inches stud thread
Thread Direction
Right-hand nut thread
Thread Direction
Right-hand stud thread
Thread Length
0.265 inches stud thread and 0.295 inches stud thread
Thread Length
0.425 inches nut thread and 0.455 inches nut thread
Locking Feature
Ring, lock serrated
Overall Length
1.378 inches
Distance From Serrated Portion To Nut End
Between 0.923 inches and 0.953 inches
Distance From Serrated Portion To Stud End
Between 0.425 inches and 0.455 inches
Distance From Serrated Portion To End Of Stud Thread
0.160 inches
Serration Quantity
13
Thready Qty Per Inch (tpi)
20 stud thread
Thready Qty Per Inch (tpi)
32 nut thread
Hardness Rating
26.0 rockwell c
Thread Size
0.190 inches nut thread
Thread Size
0.250 inches stud thread
Serration Included Angle
Between 101.0 degrees and 104.0 degrees
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, ty2 cl3 federal specification single treatment response
Style Designator
Locked in
Thread Series Designator
Unc stud thread
Thread Series Designator
Unf nut thread
MS51989 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE5E415T9313 Stud, Locked In 5 EA 05/21/2015
SPE5E419T8045 Stud, Locked In 10 EA 04/03/2019
SPE5E419T100T Stud, Locked In 12 EA 07/05/2019
SPE5E419T104K Stud, Locked In 6 EA 07/10/2019
SPE5E419T104L Stud, Locked In 6 EA 07/10/2019
SPE5E419T165F Stud, Locked In 10 EA 08/13/2019
SPE5E420T0262 Stud, Locked In 5 EA 10/15/2019
SPE4A621T51E5 Stud, Locked In 4 EA 04/19/2021
SPE4A621T64F6 Stud, Locked In 5 EA 05/10/2021

Pricing and Availability

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MS51989-104-15 Cross Reference
  • MS51989-104-15
  • MS51989-104-15