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9430840 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9430840: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.690 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN, fastener_length: 4.900 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN, hardness_rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-154-7151, 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
9430840
NSN: 5305-01-154-7151
FSC: 5305 — Screws
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
thread_class2A A
thread_length1.690 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN
fastener_length4.900 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
nominal_thread_diameter0.562 INCHES IN
minimum_tensile_strength150000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch12
NSN5305-01-154-7151
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9430840 · 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
•
HEAD HEIGHT: 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.900 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.690 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: GM 300-M FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.562 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
FASTENER LENGTH4.900 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.690 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONGM 300-M FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.562 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
MS90728-152Reference 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 9430840?
9430840 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 9430840?
There is 1 known substitute for 9430840: MS90728-152. Substitute compatibility should be verified for your specific system.
What is the NSN for 9430840?
9430840 is cataloged in the U.S. Government catalog under NSN 5305-01-154-7151. 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.