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REFERENCE IMAGE
EMANON PART NO.
NAS1351C4-28
NAS1351C4-28 is a screw in steel comp 302 overall or steel comp 303 overall or steel comp 304 overall or steel comp 305 overall or steel comp 316 overall, passivate overall finish, 0.250 INCHES diameter and 1-3/4 length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH1.750 in (1-3/4)
THREAD LENGTH1.000 in MINIMUM
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADFlat chamfer
HEAD HEIGHT0.244–0.250 in
WIDTH ACROSS FLATS0.188–0.190 in
MATERIAL & FINISH
MATERIALSteel 302/303/304/305 +1
MATERIAL SPEC66 FED STD ALL MATERIAL RESPONSES
FINISHPassivate
FINISH SPECQQ-P-35
MECHANICAL
TENSILE STRENGTH80,000 psi
HARDNESS≥80 HRB
STANDARDS & TRACEABILITY
NSN5305-00-079-2587
FLIS · NSN 5305-00-079-2587 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Fastener Length: 1-3/4", Thread: 1/4-28, Head Width: 3/16", Thread Length: 1", NAS1351 series screw
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.