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Y4-8-W-LL — SCREW,PAN HEAD,AIRC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

Y4-8-W-LL: SCREW,PAN HEAD,AIRC.

The SCREW,PAN HEAD,AIRC is a the manufacturer industrial component. Key specifications include end_item_identification: THUMBWHEEL MTG ASSY (NEXT HIGHER ASSEMBLY); MV-22 AIRCRAFT (END ITEM). This part is cataloged in the U.S.

Government catalog under NSN 5305-01-550-9119, 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
Y4-8-W-LL
NSN: 5305-01-550-9119
FSC: 5305 — Screws
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
end_item_identificationTHUMBWHEEL MTG ASSY (NEXT HIGHER ASSEMBLY); MV-22 AIRCRAFT (END ITEM)
NSN5305-01-550-9119
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: Y4-8-W-LL · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONTHUMBWHEEL MTG ASSY (NEXT HIGHER ASSEMBLY); MV-22 AIRCRAFT (END ITEM)
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 Y4-8-W-LL?
Y4-8-W-LL is a SCREW,PAN HEAD,AIRC.
What is the NSN for Y4-8-W-LL?
Y4-8-W-LL is cataloged in the U.S. Government catalog under NSN 5305-01-550-9119. 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.