PartsTable
Technical Data Sheet

1391/3209 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1391/3209: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_diameter: 6.0 MILLIMETERS NOMINAL MM, thread_length: 35.0 MILLIMETERS NOMINAL MM, fastener_length: 35.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, end_item_identification: 2420-01-535-4061. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-608-6259, 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
1391/3209
NSN: 5305-01-608-6259
FSC: 5305 — Screws
CAGE: 0JKF0 — JCB INC. (USA)
SPECIFICATIONS
head_diameter6.0 MILLIMETERS NOMINAL MM
thread_length35.0 MILLIMETERS NOMINAL MM
fastener_length35.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
end_item_identification2420-01-535-4061
NSN5305-01-608-6259
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1391/3209 · 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
•
FASTENER LENGTH: 35.0 MILLIMETERS NOMINAL MM
•
THREAD LENGTH: 35.0 MILLIMETERS NOMINAL MM
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD DIAMETER: 6.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
FASTENER LENGTH35.0 MILLIMETERS NOMINAL MM
THREAD LENGTH35.0 MILLIMETERS NOMINAL MM
THREAD DIRECTIONRIGHT-HAND
END ITEM IDENTIFICATION2420-01-535-4061
HEAD DIAMETER6.0 MILLIMETERS NOMINAL MM
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1391/3209?
1391/3209 is a SCREW,CAP,HEXAGON HEAD.
What is the NSN for 1391/3209?
1391/3209 is cataloged in the U.S. Government catalog under NSN 5305-01-608-6259. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.