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MS9111-17 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS9111-17: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 0.868 INCHES MINIMUM AND 0.898 INCHES MAXIMUM IN, head_height: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2494 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-216-5691, 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
MS9111-17
NSN: 5306-01-216-5691
FSC: 5306 — Bolts
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length0.868 INCHES MINIMUM AND 0.898 INCHES MAXIMUM IN
head_height0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2494 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN
thread_length0.533 INCHES MINIMUM AND 0.634 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM IN
hardness_rating24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
special_featuresUNDERCUT 0.221 INCH MIN,0.231 INCH MAX DIA.; 0.050 INCH MIN,0.060 INCH MAX LENGTH IN
thread_directionRIGHT-HAND
NSN5306-01-216-5691
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS9111-17 · 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 AND 0.070 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.533 INCHES MINIMUM AND 0.634 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 AND 0.070 INCHES MAXIMUM IN
HEAD HEIGHT0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
FASTENER LENGTH1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
THREAD LENGTH0.533 INCHES MINIMUM AND 0.634 INCHES MAXIMUM IN
SUPPLEMENTARY FEATURESFAILURE COULD RESULT IN LOSS OR DAMAGE TO VEHICLE OR WEAPONS SYSTEM, OR DEATH OR INJURY TO PERSONNEL
HARDNESS RATING24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM 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
5306PL1498550Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS9111-17?
MS9111-17 is a BOLT,CLOSE TOLERANCE.
What parts can replace MS9111-17?
There is 1 known substitute for MS9111-17: 5306PL1498550. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9111-17?
MS9111-17 is cataloged in the U.S. Government catalog under NSN 5306-01-216-5691. This indicates validated use in U.S. government and defense supply chains.
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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.