PartsTable
Technical Data Sheet

1391/3308D — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1391/3308D: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 12.9 OVERALL, fastener_length: 30.0 MILLIMETERS NOMINAL MM, internal_drive_style: HEXAGON, end_item_identification: 2420-01-535-4061; TRACTOR, WHEELED, INDUSTRIAL, nominal_thread_diameter: 8.0 MILLIMETERS MM, part_name_assigned_by_controlling_agency: CAP SCREWS METRIC COARSE GRADE 12.0. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-550-0530, 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
1391/3308D
NSN: 5305-01-550-0530
FSC: 5305 — Screws
CAGE: 0JKF0 — JCB INC. (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 12.9 OVERALL
fastener_length30.0 MILLIMETERS NOMINAL MM
internal_drive_styleHEXAGON
end_item_identification2420-01-535-4061; TRACTOR, WHEELED, INDUSTRIAL
nominal_thread_diameter8.0 MILLIMETERS MM
thread_series_designatorM
part_name_assigned_by_controlling_agencyCAP SCREWS METRIC COARSE GRADE 12.0
NSN5305-01-550-0530
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1391/3308D · 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: 30.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS MM
•
COLOR: WHITE OVERALL
•
INTERNAL DRIVE STYLE: HEXAGON
•
MATERIAL: STEEL PROPERTY CLASS 12.9 OVERALL
•
THREAD SERIES DESIGNATOR: M
TECHNICAL CHARACTERISTICS
FASTENER LENGTH30.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
COLORWHITE OVERALL
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP SCREWS METRIC COARSE GRADE 12.0
END ITEM IDENTIFICATION2420-01-535-4061; TRACTOR, WHEELED, INDUSTRIAL
MATERIALSTEEL PROPERTY CLASS 12.9 OVERALL
THREAD SERIES DESIGNATORM
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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
Ready to buy 1391/3308D?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1391/3308D?
1391/3308D is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 1391/3308D?
1391/3308D is cataloged in the U.S. Government catalog under NSN 5305-01-550-0530. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1391/3308D

✓ 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.