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REFERENCE IMAGE
EMANON PART NO.
NAS1304-7
NAS1304-7 is a bolt in steel comp 4140h, cadmium finish, 0.2500 INCHES diameter and 57/64 length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.2500 in
LENGTH0.891 in (57/64)
THREAD LENGTH0.425 in nom
GRIP0.428–0.448 in
GRIP DIAMETER0.2485–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADHexagon
HEAD HEIGHT0.125–0.140 in
WIDTH ACROSS FLATS0.430–0.439 in
MATERIAL & FINISH
MATERIALSteel 4140h
FINISHCadmium
FINISH SPECQQ-P-415, TYPE II, CLASS 2
STANDARDS & TRACEABILITY
NSN5306-01-330-4453
GOVERNING STANDARD80205-NAS1304
FLIS · NSN 5306-01-330-4453 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Fastener Length: 57/64", Thread: 1/4-28, Thread Length: 27/64", NAS1304 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.