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300689 — STUD,SHOULDERED AND STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

300689: STUD,SHOULDERED AND STEPPED.

The STUD,SHOULDERED AND STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740, thread_class: 3A NUT THREAD A, thread_length: 0.338 INCHES NOMINAL STUD THREAD IN, overall_length: 1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM, shoulder_length: 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-515-6700, 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
300689
NSN: 5307-00-515-6700
FSC: 5307 — Studs
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 8740
thread_class3A NUT THREAD A
thread_length0.338 INCHES NOMINAL STUD THREAD IN
overall_length1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
shoulder_length0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
style_designatorSHOULDERED AND STEPPED
thread_directionRIGHT-HAND NUT THREAD
shoulder_diameter0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.312 INCHES NUT THREAD IN
stud_end_shank_length0.082 INCHES NOMINAL IN
NSN5307-00-515-6700
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 300689 · 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
•
COTTER PIN HOLE DIAMETER: 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
•
NUT END SHANK DIAMETER: 0.310 INCHES NOMINAL IN
•
THREAD LENGTH: 0.338 INCHES NOMINAL STUD THREAD IN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SHOULDERED AND STEPPED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
COTTER PIN HOLE DIAMETER0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
NUT END SHANK DIAMETER0.310 INCHES NOMINAL IN
THREAD LENGTH0.338 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH0.540 INCHES NOMINAL NUT THREAD IN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSHOULDERED AND STEPPED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
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 300689?
300689 is a STUD,SHOULDERED AND STEPPED.
What is the NSN for 300689?
300689 is cataloged in the U.S. Government catalog under NSN 5307-00-515-6700. 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.