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Technical Data Sheet
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MS9556-05 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS9556-05: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include special_features: ITEM IS FAA CERTIFIED;, end_item_identification: KC-46 AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-494-2620, 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
MS9556-05
NSN: 5306-00-494-2620
NIINs: 004942620, 014640651, 016694533
FSC: 5306 — Bolts
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
special_featuresITEM IS FAA CERTIFIED;
end_item_identificationKC-46 AIRCRAFT
NSN5306-00-494-2620
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS9556-05 · 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: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.260 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.438 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD LENGTH: 0.376 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
HARDNESS RATING: 248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
HEAD HEIGHT0.260 INCHES NOMINAL IN
FASTENER LENGTH0.438 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.375 INCHES NOMINAL IN
THREAD LENGTH0.376 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
HARDNESS RATING248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
932.28.61.002Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
MS21279-05Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS9556-05?
MS9556-05 is a BOLT,MACHINE.
What parts can replace MS9556-05?
There are 2 known substitutes for MS9556-05: 932.28.61.002, MS21279-05. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9556-05?
MS9556-05 is cataloged in the U.S. Government catalog under NSN 5306-00-494-2620. 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.