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REFERENCE IMAGE
EMANON PART NO.
AN5-5A
AN5-5A is a bolt in steel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall, cadmium overall and chromate overall finish, 0.312 INCHES diameter and 0.719 inches nominal length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.312 in
LENGTH0.719 in nom
THREAD LENGTH0.531 in MINIMUM
GRIP0.188 in nom
THREAD
THREAD5/16-24
HEAD & DRIVE
HEADHexagon
HEAD HEIGHT0.172–0.204 in
WIDTH ACROSS FLATS0.490–0.502 in
MATERIAL & FINISH
MATERIALSteel 4037/4130/8630/8735 +2
MATERIAL SPECMIL-B-6812 ALL MATERIAL RESPONSES
FINISHCadmium and chromate
FINISH SPECQQ-P-416,TY2,CL3 ALL TREATMENT RESPONSES
MECHANICAL
TENSILE STRENGTH125,000 psi
HARDNESS26–32 HRC
STANDARDS & TRACEABILITY
NSN5306-00-150-9104
GOVERNING STANDARDAN5-5A
FLIS · NSN 5306-00-150-9104 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
length: 23/32", grip: 3/16", thread: 5/16-24, cadmium plated steel, undrilled shank
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.