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REFERENCE IMAGE
EMANON PART NO.
NAS6205-20
NAS6205-20 is a bolt in steel comp e4340 overall or steel comp 8740 overall, cadmium overall and chromate overall finish, 0.312 INCHES diameter and 1.673 inches minimum and 1.703 inches maximum length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.312 in
LENGTH1.673–1.703 in
THREAD LENGTH0.413–0.463 in
GRIP1.240–1.260 in
GRIP DIAMETER0.3110–0.3120 in
THREAD
THREAD5/16-24
HEAD & DRIVE
HEADDished hexagon
HEAD HEIGHT0.156–0.171 in
WIDTH ACROSS FLATS0.492–0.502 in
MATERIAL & FINISH
MATERIALSteel e4340/8740
MATERIAL SPECMIL-S-5000 or MIL-S-6049 or AMS6322
FINISHCadmium and chromate
FINISH SPECQQ-P-416 TY2 CL2
MECHANICAL
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5306-01-056-5446
GOVERNING STANDARD80205-NAS6205
FLIS · NSN 5306-01-056-5446 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
length: 1.688", grip: 1.250", thread: 5/16-24, hex head, tension, short thread, cadmium plated alloy steel, NAS6205 series bolt
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.