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Technical Data Sheet
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8721343 — SCREW,SELF-DRILLING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8721343: SCREW,SELF-DRILLING.

The SCREW,SELF-DRILLING is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, fastener_length: 1.250 INCHES NOMINAL IN, nonmachine_thread_style: SELF DRILLING, nonmachine_nominal_thread_diameter: 0.216 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-352-3323, 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
8721343
NSN: 5305-01-352-3323
FSC: 5305 — Screws
CAGE: 34918 — SEAMAN CORPORATION (USA)
SPECIFICATIONS
head_styleHEXAGON EXTENDED WASHER
fastener_length1.250 INCHES NOMINAL IN
nonmachine_thread_styleSELF DRILLING
nonmachine_nominal_thread_diameter0.216 INCHES IN
NSN5305-01-352-3323
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8721343 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.216 INCHES IN
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
NONMACHINE THREAD STYLE: SELF DRILLING
•
HEAD STYLE: HEXAGON EXTENDED WASHER
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.216 INCHES IN
FASTENER LENGTH1.250 INCHES NOMINAL IN
NONMACHINE THREAD STYLESELF DRILLING
HEAD STYLEHEXAGON EXTENDED WASHER
SUBSTITUTES & CROSS-REFERENCES 1
641-12080-02-0278Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8721343?
8721343 is a SCREW,SELF-DRILLING.
What parts can replace 8721343?
There is 1 known substitute for 8721343: 641-12080-02-0278. Substitute compatibility should be verified for your specific system.
What is the NSN for 8721343?
8721343 is cataloged in the U.S. Government catalog under NSN 5305-01-352-3323. 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.