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74D740208-2019 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

74D740208-2019: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: CROWNED HEXAGON, head_height: 0.203 INCHES NOMINAL IN, thread_class: 3B, thread_length: 1.000 INCHES NOMINAL IN, fastener_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-391-9203, 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
74D740208-2019
NSN: 5306-01-391-9203
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleCROWNED HEXAGON
head_height0.203 INCHES NOMINAL IN
thread_class3B
thread_length1.000 INCHES NOMINAL IN
fastener_length1.000 INCHES NOMINAL IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.563 INCHES NOMINAL IN
nominal_thread_diameter0.375 INCHES IN
concentric_hole_diameter0.203 INCHES NOMINAL IN
NSN5306-01-391-9203
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 74D740208-2019 · 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: 0.203 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: CROWNED HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.563 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.203 INCHES NOMINAL IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES NOMINAL IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLECROWNED HEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.563 INCHES NOMINAL IN
CONCENTRIC HOLE DIAMETER0.203 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
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 74D740208-2019?
74D740208-2019 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 74D740208-2019?
74D740208-2019 is cataloged in the U.S. Government catalog under NSN 5306-01-391-9203. 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.