← BACK TO RESULTS
EMANON PART NO.
NAS6304U26
NAS6304U26 is a bolt in iron alloy 660, passivate finish, 0.250 INCHES diameter and 1-63/64 length.
Bolt · listed as NAS6304U26 RIVET
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH1.984 in (1-63/64)
THREAD LENGTHMinimum 0.345 in; maximum 0.395 in
GRIPBetween 1.615 inches and 1.635 inches
GRIP DIAMETER0.2490–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADDished hexagon
HEAD HEIGHTMinimum 0.125 in; maximum 0.140 in
WIDTH ACROSS FLATS0.429–0.439 in
MATERIAL & FINISH
MATERIALIron alloy 660
MATERIAL SPECAMS 5731 — ASSN STD · AMS 5737 — ASSN STD
FINISHPassivate
FINISH SPECQQ-P-35
MECHANICAL
TENSILE STRENGTH160,000 psi
STANDARDS & TRACEABILITY
NSN5306-01-170-5552
GOVERNING STANDARD80205-NAS6304
FLIS · NSN 5306-01-170-5552 · 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: 1-63/64", Thread: 1/4-28, Thread Length: 25/64
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.