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BDBX3 — STUD,STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BDBX3: STUD,STEPPED.

The STUD,STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 2A STUD THREAD A, thread_length: 1.218 INCHES NOMINAL NUT THREAD IN, overall_length: 3.187 INCHES NOMINAL IN, shank_diameter: 1.125 INCHES NOMINAL IN, hardness_rating: 223.0 BRINELL STANDARD MINIMUM AND 277.0 BRINELL STANDARD MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-463-5177, 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
BDBX3
NSN: 5307-00-463-5177
FSC: 5307 — Studs
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL
thread_class2A STUD THREAD A
thread_length1.218 INCHES NOMINAL NUT THREAD IN
overall_length3.187 INCHES NOMINAL IN
shank_diameter1.125 INCHES NOMINAL IN
hardness_rating223.0 BRINELL STANDARD MINIMUM AND 277.0 BRINELL STANDARD MAXIMUM
style_designatorSTEPPED
thread_directionLEFT-HAND NUT THREAD
nominal_thread_size1.125 INCHES NUT THREAD IN
thread_quantity_per_inch16 NUT THREAD
thread_series_designatorUN NUT THREAD
NSN5307-00-463-5177
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BDBX3 · 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
•
SHANK DIAMETER: 1.125 INCHES NOMINAL IN
•
THREAD LENGTH: 0.968 INCHES NOMINAL STUD THREAD IN
•
HARDNESS RATING: 223.0 BRINELL STANDARD MINIMUM AND 277.0 BRINELL STANDARD MAXIMUM
•
STYLE DESIGNATOR: STEPPED
•
THREAD DIRECTION: LEFT-HAND NUT THREAD
TECHNICAL CHARACTERISTICS
SHANK DIAMETER1.125 INCHES NOMINAL IN
THREAD LENGTH0.968 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH1.218 INCHES NOMINAL NUT THREAD IN
HARDNESS RATING223.0 BRINELL STANDARD MINIMUM AND 277.0 BRINELL STANDARD MAXIMUM
STYLE DESIGNATORSTEPPED
OVERALL LENGTH3.187 INCHES NOMINAL IN
THREAD DIRECTIONLEFT-HAND NUT THREAD
THREAD DIRECTIONRIGHT-HAND STUD THREAD
NOMINAL THREAD SIZE0.750 INCHES STUD THREAD IN
NOMINAL THREAD SIZE1.125 INCHES NUT THREAD IN
SUBSTITUTES & CROSS-REFERENCES 1
XX003-4099Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 BDBX3?
BDBX3 is a STUD,STEPPED.
What parts can replace BDBX3?
There is 1 known substitute for BDBX3: XX003-4099. Substitute compatibility should be verified for your specific system.
What is the NSN for BDBX3?
BDBX3 is cataloged in the U.S. Government catalog under NSN 5307-00-463-5177. 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.