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REFERENCE IMAGE
EMANON PART NO.
NAS509L5C
NAS509L5C is a nut in iron alloy 660 overall, passivate overall finish and 0.312 INCHES diameter.
Nut
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.312 in
WIDTH ACROSS FLATS0.490–0.502 in
THREAD
THREAD0.312 inches
MATERIAL & FINISH
MATERIALIron 660
MATERIAL SPECAMS 5525 or AMS 5732 or AMS 5737
FINISHPassivate
FINISH SPECQQ-P-35
MECHANICAL
HARDNESSNot rated
STANDARDS & TRACEABILITY
NSN5310-01-121-1693
GOVERNING STANDARD80205-NAS509
FLIS · NSN 5310-01-121-1693 · retrieved 2026-08-08
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
NAS509L5C Plain Hexagon 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.