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EMANON PART NO.
AN509-416R42
Fastener
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTHMinimum 2.641 in; maximum 2.687 in
THREAD
THREAD0.250-28 UNF-3A right-hand
MATERIAL & FINISH
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740
FINISHCADMIUM
MECHANICAL
HARDNESSRockwell c minimum 26.0 and rockwell c maximum 32.0
FLIS · NSN 001443984 · retrieved 2026-09-16
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Emanon is a stocking distributor — quality-system certifications are held by the certified manufacturers we source from, not by Emanon. Every shipment carries manufacturer certifications and full lot traceability.