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Hex Castellated Self-locking Nut

Model / MPN: E12429-10 | NSN: 5310-01-087-0976
ITAR Registered seal

A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. An integral feature is incorporated for locking on the threads of a mating member. The slots when used in conjunction with a solid or split (cotter) pin, act as an extra "fail safe" feature in critical applications. Excludes nut (1), self-locking, slotted, hexagon.

Product Details
NATO Stock Number
5310-01-087-0976
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Castellated, hexagon
Nut Height
Between 0.703 inches and 0.735 inches
Width Across Flats
Between 0.743 inches and 0.755 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
18
Hardness Rating
Between 38.0 rockwell c and 43.0 rockwell c
Thread Size
0.625 inches
Countersink Angle
44.0 degrees and 46.0 degrees
Bearing Surface Type
Flat
Material
Steel
Material Specification
Ams6322 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
E12429 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE5EC15T0545 Locking, Ca Nut, Self 425 EA 04/23/2015
SPE5EC16T0212 Locking, Ca Nut , Self 486 EA 12/04/2015
SPE5EC18T0926 Locking, Ca Nut, Self 234 EA 04/04/2018
SPE5EC19T1350 Locking, Ca Nut, Self 234 EA 07/16/2019

Pricing and Availability

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E12429-10 Cross Reference
  • 209-010-504-1
  • 78847-1018
  • 78847-1018