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EF266C05-014 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

EF266C05-014: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740, locking_feature: RING, LOCK SERRATED, style_designator: LOCKED IN, thread_direction: RIGHT-HAND STUD THREAD, surface_treatment: CADMIUM OVERALL, nominal_thread_size: 4.0 MILLIMETERS NUT THREAD A MM. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-414-2140, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
EF266C05-014
NSN: 5307-01-414-2140
FSC: 5307 — Studs
CAGE: U7941 — LEONARDO UK LIMITED (AW/EH101) (GBR)
SPECIFICATIONS
materialSTEEL COMP 8740
locking_featureRING, LOCK SERRATED
style_designatorLOCKED IN
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size4.0 MILLIMETERS NUT THREAD A MM
thread_tolerance_class4H EXTERNAL NUT THREAD A
thread_series_designatorISO M NUT THREAD A
thread_pitch_in_millimeters0.70 NUT THREAD A
distance_from_serrated_portion_to_nut_end11.0 MILLIMETERS NOMINAL MM
distance_from_serrated_portion_to_stud_end12.0 MILLIMETERS NOMINAL MM
distance_from_serrated_portion_to_end_of_stud_thread7.5 MILLIMETERS MINIMUM MM
NSN5307-01-414-2140
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: EF266C05-014 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD TOLERANCE CLASS: 4H EXTERNAL NUT THREAD A
•
DISTANCE FROM SERRATED PORTION TO NUT END: 11.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 0.70 NUT THREAD A
•
STYLE DESIGNATOR: LOCKED IN
•
DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD: 7.5 MILLIMETERS MINIMUM MM
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
TECHNICAL CHARACTERISTICS
THREAD TOLERANCE CLASS4H EXTERNAL NUT THREAD A
DISTANCE FROM SERRATED PORTION TO NUT END11.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS0.70 NUT THREAD A
THREAD PITCH IN MILLIMETERS0.70 STUD THREAD
STYLE DESIGNATORLOCKED IN
DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD7.5 MILLIMETERS MINIMUM MM
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD A
NOMINAL THREAD SIZE4.0 MILLIMETERS NUT THREAD A MM
NOMINAL THREAD SIZE6.4 MILLIMETERS STUD THREAD MM
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is EF266C05-014?
EF266C05-014 is a STUD,LOCKED IN.
What is the NSN for EF266C05-014?
EF266C05-014 is cataloged in the U.S. Government catalog under NSN 5307-01-414-2140. This indicates validated use in U.S. government and defense supply chains.
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