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Technical Data Sheet
PartsTable / COMPONENT / 43-S-4380-612
43-S-4380-612 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT CHAMFER, head_height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-273-4721, 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
43-S-4380-612
NSN: 5305-00-273-4721
FSC: 5305
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT CHAMFER
head_height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_length1.000 INCHES NOMINAL IN
fastener_length1.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.250 INCHES IN
NSN5305-00-273-4721
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 43-S-4380-612 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 11 STYLE
•
INTERNAL DRIVE STYLE: HEXAGON
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD CLASS: 3A A
•
HEAD DIAMETER: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 11 STYLE
INTERNAL DRIVE STYLEHEXAGON
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A A
HEAD DIAMETER0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD QUANTITY PER INCH20
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MS35461-28Interchangeable
interchangeable cross-reference
interchangeable
MS16995-54Interchangeable
interchangeable cross-reference
interchangeable
330C844A4020D24Interchangeable
interchangeable cross-reference
interchangeable
213039PC47Interchangeable
Same NIIN cross-reference
interchangeable
FFS86TYPE1STYLE11Interchangeable
Same NIIN cross-reference
interchangeable
417357PC1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 43-S-4380-612?
43-S-4380-612 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 43-S-4380-612?
There are 6 known substitutes for 43-S-4380-612: MS35461-28, MS16995-54, 330C844A4020D24 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43-S-4380-612?
43-S-4380-612 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-273-4721. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026