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Technical Data Sheet
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MS9566-24 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS9566-24: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-291-0137, 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
MS9566-24
NSN: 5306-01-291-0137
FSC: 5306 — Bolts
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON W/HOLE
head_height0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
hole_quantity4
thread_length0.740 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES THREADS
fastener_length1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
NSN5306-01-291-0137
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS9566-24 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
EXTENDED WASHER THICKNESS: 0.060 INCHES MINIMUM IN
•
HEAD HEIGHT: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.740 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM IN
HEAD HEIGHT0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
FASTENER LENGTH1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
THREAD LENGTH0.740 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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 1
AS9566Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 MS9566-24?
MS9566-24 is a BOLT,MACHINE.
What parts can replace MS9566-24?
There is 1 known substitute for MS9566-24: AS9566. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9566-24?
MS9566-24 is cataloged in the U.S. Government catalog under NSN 5306-01-291-0137. 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.