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EMANON PART NO.
NAS6205-18
NAS6205-18 is a bolt in steel comp, cadmium and chromate finish, 0.312 INCHES diameter and Between 1.548 inches and 1.578 inches length.
Bolt
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.312 in
LENGTHBetween 1.548 inches and 1.578 inches
THREAD LENGTHNominal 0.438 in
GRIPBetween 1.115 inches and 1.135 inches
GRIP DIAMETER0.3110–0.3120 in
THREAD
THREAD5/16-24
HEAD & DRIVE
HEADDished hexagon
HEAD HEIGHTMinimum 0.156 in; maximum 0.171 in
WIDTH ACROSS FLATS0.492–0.502 in
MATERIAL & FINISH
MATERIALSteel comp
MATERIAL SPECMIL-S-5000 — MIL SPEC · MIL-S-6049 — MIL SPEC · AMS 6322 — ASSN STD
FINISHCadmium and chromate
FINISH SPECQ-P-416,TYPE 2,CLASS 2 13TH TREATMENT RESPONSE
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5306-01-100-6946
GOVERNING STANDARD80205-NAS6205 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
FLIS · NSN 5306-01-100-6946 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
length: 1.563", grip: 1.125", 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.