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PartsTable / COMPONENT / 4393529
4393529 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 8.8 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 8.4 MILLIMETERS NOMINAL MM, thread_length: 22.0 MILLIMETERS NOMINAL MM, fastener_length: 35.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-679-2172, 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
4393529
NSN: 5305-01-679-2172
FSC: 5305
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 8.8 OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height8.4 MILLIMETERS NOMINAL MM
thread_length22.0 MILLIMETERS NOMINAL MM
fastener_length35.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
width_between_flats9.9 MILLIMETERS NOMINAL MM
end_item_identification01-653-6516
nominal_thread_diameter8.0 MILLIMETERS MM
extended_washer_diameter18.0 MILLIMETERS NOMINAL MM
thread_series_designatorM
thread_pitch_in_millimeters1.25
NSN5305-01-679-2172
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4393529 · 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
•
THREAD PITCH IN MILLIMETERS: 1.25
•
EXTENDED WASHER DIAMETER: 18.0 MILLIMETERS NOMINAL MM
•
THREAD LENGTH: 22.0 MILLIMETERS NOMINAL MM
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 35.0 MILLIMETERS NOMINAL MM
•
HEAD HEIGHT: 8.4 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION01-653-6516
THREAD PITCH IN MILLIMETERS1.25
EXTENDED WASHER DIAMETER18.0 MILLIMETERS NOMINAL MM
THREAD LENGTH22.0 MILLIMETERS NOMINAL MM
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH35.0 MILLIMETERS NOMINAL MM
HEAD HEIGHT8.4 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
WIDTH BETWEEN FLATS9.9 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
11588725Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-3065EInterchangeable
interchangeable cross-reference
interchangeable
MIL-T-31000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4393529?
4393529 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 4393529?
There are 3 known substitutes for 4393529: 11588725, MIL-R-3065E, MIL-T-31000. Substitute compatibility should be verified for your specific system.
What is the NSN for 4393529?
4393529 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-679-2172. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026