PartsTable
Technical Data Sheet

1391/3420D — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1391/3420D: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include head_style: DEE CHAMFER, thread_length: 100.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, internal_drive_style: HEXAGON, end_item_identification: 2420-01-535-4061, nominal_thread_diameter: 10.0 MILLIMETERS MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-549-3946, 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
1391/3420D
NSN: 5305-01-549-3946
FSC: 5305 — Screws
CAGE: 0JKF0 — JCB INC. (USA)
SPECIFICATIONS
head_styleDEE CHAMFER
thread_length100.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
internal_drive_styleHEXAGON
end_item_identification2420-01-535-4061
nominal_thread_diameter10.0 MILLIMETERS MM
thread_series_designatorM
NSN5305-01-549-3946
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1391/3420D · 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 LENGTH: 100.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS MM
•
HEAD STYLE: DEE CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
•
INTERNAL DRIVE STYLE: HEXAGON
•
THREAD SERIES DESIGNATOR: M
TECHNICAL CHARACTERISTICS
THREAD LENGTH100.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER10.0 MILLIMETERS MM
HEAD STYLEDEE CHAMFER
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLEHEXAGON
END ITEM IDENTIFICATION2420-01-535-4061
THREAD SERIES DESIGNATORM
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 1
CV166679HSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1391/3420D?
1391/3420D is a SCREW,CAP,SOCKET HEAD.
What parts can replace 1391/3420D?
There is 1 known substitute for 1391/3420D: CV166679H. Substitute compatibility should be verified for your specific system.
What is the NSN for 1391/3420D?
1391/3420D is cataloged in the U.S. Government catalog under NSN 5305-01-549-3946. 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.