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REFERENCE IMAGE
EMANON PART NO.
NAS1154-6R
NAS1154-6R is a screw in steel comp 4140 or steel comp 4340 or steel comp 8740, cadmium and chromate finish, 0.250 INCHES diameter and 45/64 length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.250 in
LENGTH0.703 in (45/64)
THREAD LENGTH0.291–0.341 in
GRIP0.365–0.385 in
GRIP DIAMETER0.2485–0.2495 in
THREAD
THREAD1/4-28
HEAD & DRIVE
HEADFlat countersunk
MATERIAL & FINISH
MATERIALSteel 4140/4340/8740
MATERIAL SPECMIL-S-5626 or MIL-S-8844 or MIL-S-6049
FINISHCadmium and chromate
FINISH SPECQQ-P-416 TY 2 CL 2
MECHANICAL
TENSILE STRENGTH160,000 psi
STANDARDS & TRACEABILITY
NSN5305-01-318-9113
GOVERNING STANDARD80205-NAS1154
FLIS · NSN 5305-01-318-9113 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
Fastener Length: 45/64", Thread: 1/4-28, Thread Length: 21/64
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.