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EMANON PART NO.
NAS1154-4
NAS1154-4 is a screw in steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740, cadmium and chromate finish, 0.250 INCHES diameter and 37/64 length.
Screw
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.578 in (37/64)
THREAD LENGTHMinimum 0.316 in
GRIP0.250 in
GRIP DIAMETER0.2485–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADFlat countersunk
HEAD DIAMETER0.499–0.507 in
MATERIAL & FINISH
MATERIALSteel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
MATERIAL SPECMIL-S-5626 — MIL SPEC · MIL-S-5000 — MIL SPEC · MIL-S-8503 — MIL SPEC · MIL-S-6098 — MIL SPEC · MIL-S-6049 — MIL SPEC
FINISHCadmium and chromate
FINISH SPECQQ-P-416,TY 2,CL 3 ALL TREATMENT RESPONSES
MECHANICAL
TENSILE STRENGTH160,000 psi
HARDNESS36–40 HRC
STANDARDS & TRACEABILITY
NSN5305-00-893-7093
GOVERNING STANDARD80205-NAS1154
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Length: 37/64", Thread: 1/4-28, Thread Length: 5/16", NAS1154 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.