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REFERENCE IMAGE
EMANON PART NO.
AN174C25A
AN174C25A is a bolt in steel comp 431, 0.250 INCHES diameter and 2.640 INCHES MINIMUM AND 2.687 INCHES MAXIMUM length.
Bolt
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH2.640–2.687 in
THREAD LENGTH0.468 in nom
GRIP2.172–2.204 in
GRIP DIAMETER0.248–0.249 in
THREAD
THREAD0.250-28 UNF-3A right-hand
HEAD & DRIVE
HEADC1 hexagon
HEAD HEIGHT0.140–0.172 in
WIDTH ACROSS FLATS0.428–0.440 in
MATERIAL & FINISH
MATERIALSTEEL 431
MATERIAL SPECMIL-S-18732
STANDARDS & TRACEABILITY
NSN5306-01-520-3431
GOVERNING STANDARDAN174C25A
FLIS · NSN 5306-01-520-3431 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
AN174C25A
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.