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75A430678-2001 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

75A430678-2001: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DEE CHAMFER, head_height: 0.100 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.250 INCHES NOMINAL IN, thread_length: 0.387 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-174-5027, 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
75A430678-2001
NSN: 5306-01-174-5027
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDEE CHAMFER
head_height0.100 INCHES NOMINAL IN
thread_class3A A
head_diameter1.250 INCHES NOMINAL IN
thread_length0.387 INCHES NOMINAL IN
fastener_length2.420 INCHES NOMINAL IN
shoulder_length1.920 INCHES NOMINAL IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
shoulder_diameter0.7487 INCHES MINIMUM AND 0.7492 INCHES MAXIMUM IN
surface_treatmentCHROMIUM GRIP
NSN5306-01-174-5027
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 75A430678-2001 · 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: 0.100 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.420 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.490 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN
•
CONCENTRIC HOLE DEPTH: 1.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.387 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM FIRST HOLE IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6411 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.100 INCHES NOMINAL IN
FASTENER LENGTH2.420 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.490 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN
CONCENTRIC HOLE DEPTH1.750 INCHES NOMINAL IN
THREAD LENGTH0.387 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM FIRST HOLE IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6411 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDEE CHAMFER
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 75A430678-2001?
75A430678-2001 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 75A430678-2001?
75A430678-2001 is cataloged in the U.S. Government catalog under NSN 5306-01-174-5027. 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.