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Technical Data Sheet

1391/3311 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1391/3311: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include nominal_thread_diameter: 8.0 MILLIMETERS MM, thread_pitch_in_millimeters: 45.0, part_name_assigned_by_controlling_agency: SCREW, CAP, SOCKET HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-668-6449, 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
1391/3311
NSN: 5305-01-668-6449
FSC: 5305 — Screws
CAGE: 0JKF0 — JCB INC. (USA)
SPECIFICATIONS
nominal_thread_diameter8.0 MILLIMETERS MM
thread_pitch_in_millimeters45.0
part_name_assigned_by_controlling_agencySCREW, CAP, SOCKET HEAD
NSN5305-01-668-6449
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1391/3311 · 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 PITCH IN MILLIMETERS: 45.0
•
NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS MM
TECHNICAL CHARACTERISTICS
THREAD PITCH IN MILLIMETERS45.0
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, CAP, SOCKET HEAD
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 1391/3311?
1391/3311 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 1391/3311?
1391/3311 is cataloged in the U.S. Government catalog under NSN 5305-01-668-6449. This indicates validated use in U.S. government and defense supply chains.
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