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REFERENCE IMAGE
EMANON PART NO.
NAS1802-4-12
NAS1802-4-12 is a screw in 0.250 INCHES diameter and 25/32 length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.781 in (25/32)
THREAD LENGTH0.663–0.781 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADHexagon
HEAD HEIGHT0.125–0.140 in
WIDTH ACROSS FLATS0.367–0.376 in
MECHANICAL
TENSILE STRENGTH160,000 psi
STANDARDS & TRACEABILITY
NSN5305-01-155-6683
GOVERNING STANDARD80205-NAS1802
FLIS · NSN 5305-01-155-6683 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Fastener Length: 25/32", Thread: 1/4-28, Thread Length: 25/32",
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.