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Technical Data Sheet
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MS9503-30 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS9503-30: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, hole_type: DRILLED, head_style: HEXAGON, grip_length: 1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, head_height: 0.219 INCHES NOMINAL IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-388-3669, 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
MS9503-30
NSN: 5306-01-388-3669
FSC: 5306 — Bolts
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
head_height0.219 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
hole_quantity1
thread_length2.267 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES OVERALL
fastener_length2.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
NSN5306-01-388-3669
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS9503-30 · 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 OVERALL
•
HEAD HEIGHT: 0.219 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.750 INCHES NOMINAL IN
•
THREAD LENGTH: 2.267 INCHES NOMINAL IN
•
HOLE CONFIGURATION STYLE: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES OVERALL
HEAD HEIGHT0.219 INCHES NOMINAL IN
FASTENER LENGTH2.750 INCHES NOMINAL IN
THREAD LENGTH2.267 INCHES NOMINAL IN
HOLE CONFIGURATION STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS9503-30?
MS9503-30 is a BOLT,MACHINE.
What is the NSN for MS9503-30?
MS9503-30 is cataloged in the U.S. Government catalog under NSN 5306-01-388-3669. This indicates validated use in U.S. government and defense supply chains.
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