← BACK TO RESULTS
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
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTHMinimum 2.640 in; maximum 2.687 in
THREAD LENGTHNominal 0.468 in
GRIPMinimum 2.172 in; maximum 2.204 in
GRIP DIAMETER0.248–0.249 in
THREAD
THREAD0.250-28 UNF-3A right-hand
HEAD & DRIVE
HEADC1 hexagon
HEAD HEIGHTMinimum 0.140 in; maximum 0.172 in
WIDTH ACROSS FLATS0.428–0.440 in
MATERIAL & FINISH
MATERIALSTEEL COMP 431
MATERIAL SPECMIL-S-18732 — MIL SPEC
STANDARDS & TRACEABILITY
NSN5306-01-520-3431
GOVERNING STANDARDAN174C25A
FLIS · NSN 5306-01-520-3431 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
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.