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EMANON PART NO.
NAS1671-4L8
Fastener
SPECIFICATIONS
KEY DIMENSIONS
DIAMETERMinimum 0.258 in; maximum 0.260 in
LENGTHMinimum 0.616 in; maximum 0.646 in
MATERIAL & FINISH
MATERIALSLEEVE IRON ALLOY 660
FINISHSLEEVE PASSIVATE
MECHANICAL
HARDNESSRockwell c minimum 30.0 and rockwell c maximum 45.0
FLIS · NSN 008570661 · 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.