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550624-3 — STUD,STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

550624-3: STUD,STEPPED.

The STUD,STEPPED is a the manufacturer industrial component. Key specifications include thread_class: 3A NUT THREAD A, thread_length: 0.680 INCHES NOMINAL STUD THREAD IN, overall_length: 0.930 INCHES NOMINAL IN, shank_diameter: 0.090 INCHES NOMINAL IN, style_designator: STEPPED, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-083-8873, 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
550624-3
NSN: 5307-00-083-8873
FSC: 5307 — Studs
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
thread_class3A NUT THREAD A
thread_length0.680 INCHES NOMINAL STUD THREAD IN
overall_length0.930 INCHES NOMINAL IN
shank_diameter0.090 INCHES NOMINAL IN
style_designatorSTEPPED
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.138 INCHES NUT THREAD IN
thread_quantity_per_inch32 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) NUT THREAD
NSN5307-00-083-8873
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 550624-3 · 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: 0.090 INCHES NOMINAL IN
•
THREAD LENGTH: 0.680 INCHES NOMINAL STUD THREAD IN
•
STYLE DESIGNATOR: STEPPED
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.138 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.090 INCHES NOMINAL IN
THREAD LENGTH0.680 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH0.172 INCHES NOMINAL NUT THREAD IN
STYLE DESIGNATORSTEPPED
OVERALL LENGTH0.930 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.138 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.190 INCHES STUD THREAD IN
SURFACE TREATMENTPASSIVATE OVERALL
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 550624-3?
550624-3 is a STUD,STEPPED.
What is the NSN for 550624-3?
550624-3 is cataloged in the U.S. Government catalog under NSN 5307-00-083-8873. 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.