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REFERENCE IMAGE
EMANON PART NO.
NAS6604-25
NAS6604-25 is a bolt in steel, cadmium and chromate finish, 0.250 INCHES diameter and Between 1.972 inches and 2.002 inches length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH1.972–2.002 in
THREAD LENGTH0.400–0.450 in
GRIP1.552–1.572 in
GRIP DIAMETER0.2485–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADDished hexagon
HEAD HEIGHT0.125–0.140 in
WIDTH ACROSS FLATS0.429–0.439 in
MATERIAL & FINISH
MATERIALSteel
MATERIAL SPECMIL-S-5000 or MIL-S-6049 or AMS 6322
FINISHCadmium and chromate
FINISH SPECQQ-P-416,TYPE 2,CLASS 2
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5306-01-180-4747
GOVERNING STANDARD80205-NAS6604
FLIS · NSN 5306-01-180-4747 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
length: 1.987", grip: 1.562", thread: 1/4-28, hex head, tension, long thread, cadmium plated alloy steel
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.