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EMANON PART NO.
AN818-4K
AN818-4K is a fitting in steel comp 316, passivate finish and 0.438 inches diameter.
Fitting
SPECIFICATIONS
KEY DIMENSIONS
OUTSIDE DIAMETER0.250 in (1/4)
WIDTH ACROSS FLATS0.563 in nom
THREAD
THREAD0.438 inches
MATERIAL & FINISH
MATERIALSteel comp 316
MATERIAL SPECQQ-S-763 — FED SPEC
FINISHPassivate
STANDARDS & TRACEABILITY
NSN4730-00-929-3360
GOVERNING STANDARDAN818-4K
FLIS · NSN 4730-00-929-3360 · retrieved 2026-08-10
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
outer diameter: 1/4", thread: 7/16-20, flared tube, corrosion resistant steel, AN818 series nut
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.