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REFERENCE IMAGE
EMANON PART NO.
NAS501-4-3A
NAS501-4-3A is a bolt in steel corrosion resisting overall, passivate overall finish, 0.250 INCHES diameter and 15/32 length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.469 in (15/32)
THREAD LENGTH0.407 in MINIMUM
GRIP0.062 in nom
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADHexagon
HEAD HEIGHT0.156 in nom
WIDTH ACROSS FLATS0.438 in nom
MATERIAL & FINISH
MATERIALSteel corrosion resisting
MATERIAL SPECQQ-S-763
FINISHPassivate
STANDARDS & TRACEABILITY
NSN5306-00-879-8834
FLIS · NSN 5306-00-879-8834 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Fastener Length: 15/32", Thread: 1/4-28, Thread Length: 13/32"
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.