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Technical Data Sheet
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MS9491-34 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS9491-34: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_height: 0.188 INCHES NOMINAL IN, thread_class: 3A A, surface_finish: 32.0 MICROINCHES OVERALL, thread_direction: RIGHT-HAND, features_provided: FINISHED HEAD, width_between_flats: 0.497 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-556-2670, 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
MS9491-34
NSN: 5306-01-556-2670
FSC: 5306 — Bolts
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
head_height0.188 INCHES NOMINAL IN
thread_class3A A
surface_finish32.0 MICROINCHES OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.497 INCHES NOMINAL IN
end_item_identificationSOLENOID VALVE
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
material_document_and_classificationAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyBOLT MACHINE HEXAGON HEAD
NSN5306-01-556-2670
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS9491-34 · 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: 0.188 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.497 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES OVERALL
HEAD HEIGHT0.188 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.497 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT MACHINE HEXAGON HEAD
THREAD CLASS3A A
END ITEM IDENTIFICATIONSOLENOID VALVE
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 MS9491-34?
MS9491-34 is a BOLT,MACHINE.
What is the NSN for MS9491-34?
MS9491-34 is cataloged in the U.S. Government catalog under NSN 5306-01-556-2670. This indicates validated use in U.S. government and defense supply chains.
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