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8409684 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8409684: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, thread_class: 2A STUD THREAD A, thread_length: 0.438 INCHES MINIMUM NUT THREAD IN, overall_length: 1.312 INCHES NOMINAL IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND STUD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-493-7155, 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
8409684
NSN: 5307-00-493-7155
FSC: 5307 — Studs
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
thread_class2A STUD THREAD A
thread_length0.438 INCHES MINIMUM NUT THREAD IN
overall_length1.312 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNF NUT THREAD
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-493-7155
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8409684 · 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: 0.625 INCHES MINIMUM STUD THREAD IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.312 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.625 INCHES MINIMUM STUD THREAD IN
THREAD LENGTH0.438 INCHES MINIMUM NUT THREAD IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.312 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.312 INCHES STUD THREAD IN
THREAD CLASS2A STUD THREAD A
SUBSTITUTES & CROSS-REFERENCES 3
010025Reference document
Same NSN cross-reference
Reference document — Secondary reference
520A114Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S4023Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8409684?
8409684 is a STUD,PLAIN.
What parts can replace 8409684?
There are 3 known substitutes for 8409684: 010025, 520A114, S4023. Substitute compatibility should be verified for your specific system.
What is the NSN for 8409684?
8409684 is cataloged in the U.S. Government catalog under NSN 5307-00-493-7155. This indicates validated use in U.S. government and defense supply chains.
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