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PartsTable / COMPONENT / F6 1-2 40
F6 1-2 40 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.687 INCHES NOMINAL IN, material: STEEL OVERALL, drive_type: SLOTTED, grip_length: 0.400 INCHES NOMINAL IN, shank_neck_length: 0.234 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-449-3136, 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
F6 1-2 40
NSN: 5325-00-449-3136
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
diameter0.687 INCHES NOMINAL IN
materialSTEEL OVERALL
drive_typeSLOTTED
grip_length0.400 INCHES NOMINAL IN
shank_neck_length0.234 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
turnlock_stud_head_styleFLAT COUNTERSUNK
stud_shank_major_diameter0.406 INCHES NOMINAL IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.065 INCHES NOMINAL IN
NSN5325-00-449-3136
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: F6 1-2 40 · 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
•
MATERIAL ACCOMMODATED THICKNESS: 0.065 INCHES NOMINAL IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
STUD SHANK MAJOR DIAMETER: 0.406 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
SHANK NECK LENGTH: 0.234 INCHES NOMINAL IN
•
DRIVE TYPE: SLOTTED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL ACCOMMODATED THICKNESS0.065 INCHES NOMINAL IN
TURNLOCK STUD SHANK STYLESTUD SHANK
STUD SHANK MAJOR DIAMETER0.406 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
SHANK NECK LENGTH0.234 INCHES NOMINAL IN
DRIVE TYPESLOTTED
DIAMETER0.687 INCHES NOMINAL IN
GRIP LENGTH0.400 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
F6540.017Interchangeable
interchangeable cross-reference
interchangeable
A112.19.2MInterchangeable
interchangeable cross-reference
interchangeable
A112.19.2M-3-G3A2B211Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F6 1-2 40?
F6 1-2 40 is a STUD,TURNLOCK FASTENER.
What parts can replace F6 1-2 40?
There are 3 known substitutes for F6 1-2 40: F6540.017, A112.19.2M, A112.19.2M-3-G3A2B211. Substitute compatibility should be verified for your specific system.
What is the NSN for F6 1-2 40?
F6 1-2 40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-449-3136. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026