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EMANON PART NO.
NAS1004-13
NAS1004-13 is a bolt in iron alloy 660 overall, passivate overall finish, 0.250 INCHES diameter and 1-23/64 length.
Bolt
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH1.359 in (1-23/64)
THREAD LENGTHMinimum 0.514 in; maximum 0.574 in
GRIPMinimum 0.797 in; maximum 0.827 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADHexagon
HEAD HEIGHTMinimum 0.140 in; maximum 0.170 in
WIDTH ACROSS FLATS0.430–0.439 in
MATERIAL & FINISH
MATERIALIron alloy 660 overall
MATERIAL SPECAMS 5732 — ASSN STD · AMS 5737 — ASSN STD · AMS 5733 — ASSN STD
FINISHPassivate overall
FINISH SPECMIL-S-5002
MECHANICAL
HARDNESS248.0 brinell standard minimum and 341.0 brinell standard maximum
STANDARDS & TRACEABILITY
NSN5306-00-470-6047
GOVERNING STANDARD80205-NAS1004
FLIS · NSN 5306-00-470-6047 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Fastener Length: 1-23/64", Thread: 1/4-28, Thread Length: 9/16"
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.