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4X128 — STUD,SHOULDERED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4X128: STUD,SHOULDERED.

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4135, thread_class: 3A STUD THREAD A, thread_length: 1.406 INCHES NOMINAL STUD THREAD IN, overall_length: 4.500 INCHES NOMINAL IN, shoulder_length: 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-353-2767, 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
4X128
NSN: 5307-00-353-2767
FSC: 5307 — Studs
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 4135
thread_class3A STUD THREAD A
thread_length1.406 INCHES NOMINAL STUD THREAD IN
overall_length4.500 INCHES NOMINAL IN
shoulder_length0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
style_designatorSHOULDERED
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.750 INCHES NUT THREAD IN
nut_end_shank_length0.625 INCHES NOMINAL IN
distance_across_flats0.963 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
nut_end_shank_diameter0.783 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
thread_quantity_per_inch16 NUT THREAD
NSN5307-00-353-2767
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4X128 · 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
•
NUT END SHANK DIAMETER: 0.783 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.000 INCHES NOMINAL NUT THREAD IN
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A331 OR A332 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
TECHNICAL CHARACTERISTICS
NUT END SHANK DIAMETER0.783 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
THREAD LENGTH1.000 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH1.406 INCHES NOMINAL STUD THREAD IN
STYLE DESIGNATORSHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A331 OR A332 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH4.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.750 INCHES STUD THREAD IN
NOMINAL THREAD SIZE0.750 INCHES NUT THREAD IN
SUBSTITUTES & CROSS-REFERENCES 1
P2593Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4X128?
4X128 is a STUD,SHOULDERED.
What parts can replace 4X128?
There is 1 known substitute for 4X128: P2593. Substitute compatibility should be verified for your specific system.
What is the NSN for 4X128?
4X128 is cataloged in the U.S. Government catalog under NSN 5307-00-353-2767. This indicates validated use in U.S. government and defense supply chains.
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