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S8429-3B — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S8429-3B: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: HEXAGON, grip_length: 0.062 INCHES NOMINAL IN, head_height: 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.408 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-587-9736, 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
S8429-3B
NSN: 5306-01-587-9736
FSC: 5306 — Bolts
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleHEXAGON
grip_length0.062 INCHES NOMINAL IN
head_height0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
thread_class3A A
thread_length0.408 INCHES NOMINAL IN
fastener_length0.469 INCHES NOMINAL IN
special_featuresDRILLED HEAD
thread_directionRIGHT-HAND
width_between_flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
end_item_identificationC-5 AIRCRAFT
nominal_thread_diameter0.190 INCHES IN
NSN5306-01-587-9736
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S8429-3B · 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
•
HEAD HEIGHT: 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.469 INCHES NOMINAL IN
•
THREAD LENGTH: 0.408 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
FASTENER LENGTH0.469 INCHES NOMINAL IN
THREAD LENGTH0.408 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.062 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
SPECIAL FEATURESDRILLED HEAD
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S8429-3B?
S8429-3B is a BOLT,MACHINE.
What is the NSN for S8429-3B?
S8429-3B is cataloged in the U.S. Government catalog under NSN 5306-01-587-9736. 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.