All-Metal Self-Locking Nut
Temperature Range:
to +800°F; +426°C
Features
Self-locking castellated hex nut, silver plated
High corrosion resistance
Low magnetic
permeability
Complies with MS21225 and NASM21225
A286 steel
What it Is
The all-metal Dyna-Nut design is a high temperature, self-locking, steel hex nut designed for environments where corrosion resistance is necessary and a wide temperature range, including high temperatures, exist.
How it Works
Dyna-Nut castellated nuts are crimped to create an all metal locking device and tested to meet the locking requirements of NASM-25027 (formerly MIL-N-25027) and other industry and customer standards. Castellated nuts are designed and frequently used with single hole drilled bolts and cotter pins or safety wire for added locking assurance.
Typical Applications
rod end bearings
military vehicles
actuators
Specifications
Material
Corrosion and heat resistant A286 steel, composition
per AMS 5737, AMS 5525 or AMS 5725.
Plating
silver plated per AMS 2411.
Magnetic Permeability
less than 2.0 (AIR=1.0) for a field strength H=200
oersteds using a permeability indicator per ASTM A342.
Threads
designed for use with 3A threads per MIL-S-8879
How to Specify
Dyna-Nuts are ordered in the sizes described in NASM21225
(formerly MS21225).
To order Dyna-Nut
self-locking nuts, or to request a quote,
please call us and speak directly with one of our Sales
Engineers.
Long-Lok also carries a selection of paired cotter pins for Dyna-Nut designs For the appropriate cotter pin for your application please contact our A&W division at (951) 781-4901.
See for Yourself
Send us a sample of
your part or fastener, along with a brief description of
its application and performance requirements, and we’ll
process it using the most appropriate Long-Lok thread locking
or sealing method. Or, to sample a standard Long-Lok fastener,
simply supply us with a part number. Samples are provided
free of charge. Call your
nearest Long-Lok facility for assistance.
