PartsTable
Technical Data Sheet
Download PDF

GYS187-68W — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GYS187-68W: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, grip_length: 4.250 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.812 INCHES MINIMUM IN, fastener_length: 5.062 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-169-8639, 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
GYS187-68W
NSN: 5306-00-169-8639
FSC: 5306 — Bolts
CAGE: 0B9R9 — MEGGITT AIRCRAFT BRAKING SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
grip_length4.250 INCHES NOMINAL IN
thread_class3A A
thread_length0.812 INCHES MINIMUM IN
fastener_length5.062 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentPHOSPHATE OVERALL
nominal_thread_diameter0.438 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNF
NSN5306-00-169-8639
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GYS187-68W · 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: 5.062 INCHES NOMINAL IN
•
THREAD LENGTH: 0.812 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 4.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
FASTENER LENGTH5.062 INCHES NOMINAL IN
THREAD LENGTH0.812 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.438 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH4.250 INCHES NOMINAL IN
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS3A A
THREAD QUANTITY PER INCH20
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy GYS187-68W?
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 GYS187-68W?
GYS187-68W is a BOLT,MACHINE.
What is the NSN for GYS187-68W?
GYS187-68W is cataloged in the U.S. Government catalog under NSN 5306-00-169-8639. 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 — GYS187-68W

✓ 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.