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EMANON PART NO.
NAS1791A4-6
Fastener
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
THREAD
THREAD0.250-28 unified national joint fine (UNJF)-3B right-hand
MATERIAL & FINISH
MATERIALSHELL IRON ALLOY 660
FINISHSHELL PASSIVATE
FLIS · NSN 002837522 · retrieved 2026-09-16
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
NAS1791A4-6
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.