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Technical Data Sheet

1321/3515Z — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1321/3515Z: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, fastener_length: 65.0 MILLIMETERS NOMINAL MM, special_features: BOLT, GRADE 8.8, surface_treatment: ZINC OVERALL, end_item_identification: NIIN 016598135. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-668-6572, 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
1321/3515Z
NSN: 5305-01-668-6572
FSC: 5305 — Screws
CAGE: 0JKF0 — JCB INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
fastener_length65.0 MILLIMETERS NOMINAL MM
special_featuresBOLT, GRADE 8.8
surface_treatmentZINC OVERALL
end_item_identificationNIIN 016598135
nominal_thread_diameter12.0 MILLIMETERS MM
part_name_assigned_by_controlling_agencySCREW,CAP, HEXAGON HEAD
NSN5305-01-668-6572
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1321/3515Z · 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: 65.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 12.0 MILLIMETERS MM
•
HEAD STYLE: HEXAGON
•
COLOR: SILVER OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH65.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER12.0 MILLIMETERS MM
HEAD STYLEHEXAGON
COLORSILVER OVERALL
SPECIAL FEATURESBOLT, GRADE 8.8
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,CAP, HEXAGON HEAD
END ITEM IDENTIFICATIONNIIN 016598135
MATERIALSTEEL OVERALL
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
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FREQUENTLY ASKED QUESTIONS
What is 1321/3515Z?
1321/3515Z is a SCREW,CAP,HEXAGON HEAD.
What is the NSN for 1321/3515Z?
1321/3515Z is cataloged in the U.S. Government catalog under NSN 5305-01-668-6572. 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.