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4X1077 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4X1077: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 2A STUD THREAD A, thread_length: 0.750 INCHES MAXIMUM STUD THREAD IN, overall_length: 2.500 INCHES NOMINAL IN, thread_direction: RIGHT-HAND NUT THREAD, nominal_thread_size: 0.625 INCHES NUT THREAD IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-281-6820, 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
4X1077
NSN: 5307-00-281-6820
FSC: 5307 — Studs
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL
thread_class2A STUD THREAD A
thread_length0.750 INCHES MAXIMUM STUD THREAD IN
overall_length2.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.625 INCHES NUT THREAD IN
thread_quantity_per_inch18 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
NSN5307-00-281-6820
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4X1077 · 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
•
THREAD LENGTH: 0.750 INCHES MAXIMUM STUD THREAD IN
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.625 INCHES NUT THREAD IN
•
THREAD CLASS: 2A STUD THREAD A
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.750 INCHES MAXIMUM STUD THREAD IN
THREAD LENGTH1.125 INCHES MAXIMUM NUT THREAD IN
OVERALL LENGTH2.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.625 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.625 INCHES STUD THREAD IN
THREAD CLASS2A STUD THREAD A
THREAD CLASS2A NUT THREAD A
THREAD QUANTITY PER INCH18 NUT THREAD
SUBSTITUTES & CROSS-REFERENCES 1
135993Reference 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 4X1077?
4X1077 is a STUD,PLAIN.
What parts can replace 4X1077?
There is 1 known substitute for 4X1077: 135993. Substitute compatibility should be verified for your specific system.
What is the NSN for 4X1077?
4X1077 is cataloged in the U.S. Government catalog under NSN 5307-00-281-6820. 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.