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9440903 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9440903: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: DISTORTED HEAD, head_height: 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.380 INCHES MAXIMUM IN, fastener_length: 1.210 INCHES MINIMUM AND 1.250 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 5306-01-216-7375, 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
9440903
NSN: 5306-01-216-7375
FSC: 5306 — Bolts
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
head_styleDISTORTED HEAD
head_height0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
thread_class2A A
thread_length0.380 INCHES MAXIMUM IN
fastener_length1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
locking_featureDISTORTIONS TOP OF HEAD
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentZINC OVERALL
width_between_flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
NSN5306-01-216-7375
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9440903 · 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: 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: G-4342M,CODE 20U32,FSCM 73342 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.380 INCHES MAXIMUM IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
FASTENER LENGTH1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONG-4342M,CODE 20U32,FSCM 73342 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.380 INCHES MAXIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEDISTORTED HEAD
THREAD DIRECTIONRIGHT-HAND
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9440903?
9440903 is a BOLT,MACHINE.
What is the NSN for 9440903?
9440903 is cataloged in the U.S. Government catalog under NSN 5306-01-216-7375. 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.