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6784686 — STUD,SHOULDERED AND STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6784686: STUD,SHOULDERED AND STEPPED.

The STUD,SHOULDERED AND STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 3A STUD THREAD A, thread_length: 0.611 INCHES MINIMUM AND 0.687 INCHES MAXIMUM NUT THREAD IN, overall_length: 2.768 INCHES MINIMUM AND 2.784 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES OVERALL, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-627-7611, 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
6784686
NSN: 5307-00-627-7611
FSC: 5307 — Studs
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
thread_class3A STUD THREAD A
thread_length0.611 INCHES MINIMUM AND 0.687 INCHES MAXIMUM NUT THREAD IN
overall_length2.768 INCHES MINIMUM AND 2.784 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES OVERALL
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
shoulder_length0.450 INCHES NOMINAL IN
style_designatorSHOULDERED AND STEPPED
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.375 INCHES NUT THREAD IN
nut_end_shank_length1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN
NSN5307-00-627-7611
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6784686 · 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
•
SURFACE FINISH: 63.0 MICROINCHES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
COTTER PIN HOLE DIAMETER: 0.070 INCHES MINIMUM FIRST HOLE IN
•
NUT END SHANK DIAMETER: 0.371 INCHES NOMINAL IN
•
THREAD LENGTH: 0.600 INCHES MINIMUM AND 0.630 INCHES MAXIMUM STUD THREAD IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
COTTER PIN HOLE DIAMETER0.070 INCHES MINIMUM FIRST HOLE IN
COTTER PIN HOLE DIAMETER0.080 INCHES MAXIMUM SECOND HOLE IN
NUT END SHANK DIAMETER0.371 INCHES NOMINAL IN
THREAD LENGTH0.600 INCHES MINIMUM AND 0.630 INCHES MAXIMUM STUD THREAD IN
THREAD LENGTH0.611 INCHES MINIMUM AND 0.687 INCHES MAXIMUM NUT THREAD IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSHOULDERED AND STEPPED
MATERIAL DOCUMENT AND CLASSIFICATIONEMS85010,GENERAL MOTORS CORP MFR REF SINGLE MATERIAL RESPONSE
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6784686?
6784686 is a STUD,SHOULDERED AND STEPPED.
What is the NSN for 6784686?
6784686 is cataloged in the U.S. Government catalog under NSN 5307-00-627-7611. 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.