Details
F22NM-40 is an ESNA self-locking hex nut with a red nylon insert, 4-40 thread, in the regular height hex pattern. It is the manufacturer part number for AN365-440, the elastic stop nut used throughout WWII and post-war airframes, engine accessories, and instrument installations wherever a reusable vibration resistant nut is called out.
Part Number: F22NM-40
Type: Nut, Self-Locking, Hexagon, Nylon Insert, Regular Height Hex
Thread: 4-40 (0.1120-40 UNJC-3B)
Size Range: machine screw sizes
Manufacturer: Elastic Stop Nut Corporation of America (ESNA), CAGE 72962
Material and Finish: Steel, cadmium plate, Type II post-plate treatment
Locking Insert: Red nylon, 350 F maximum
Min Ultimate Tensile: 750 lb
Specifications: Threads per AS8879 or MIL-S-7742 | Locking torque per NASM25027
Cross Reference: AN365-440 | AN365-440A | MS20365-440 | MS20365-440A | NAS1021N04 | MS21044N04
Photos are for reference only.
Warranty Information
