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11657638-1 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

11657638-1: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 8640 OR STEEL COMP 8740, thread_class: 3A NUT THREAD A, thread_length: 0.688 INCHES NOMINAL NUT THREAD IN, overall_length: 1.750 INCHES NOMINAL IN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-246-9624, 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
11657638-1
NSN: 5307-00-246-9624
FSC: 5307 — Studs
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 8640 OR STEEL COMP 8740
thread_class3A NUT THREAD A
thread_length0.688 INCHES NOMINAL NUT THREAD IN
overall_length1.750 INCHES NOMINAL IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentCADMIUM OR ZINC OVERALL
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_pitch_diameters+0.2790 TO 0.2810 INCHES STUD THREAD IN
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNS STUD THREAD
NSN5307-00-246-9624
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11657638-1 · 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: 0.688 INCHES NOMINAL NUT THREAD IN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +0.2790 TO 0.2810 INCHES STUD THREAD IN
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.312 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.688 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH0.625 INCHES NOMINAL STUD THREAD IN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.2790 TO 0.2810 INCHES STUD THREAD IN
OVERALL LENGTH1.750 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
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
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 11657638-1?
11657638-1 is a STUD,PLAIN.
What is the NSN for 11657638-1?
11657638-1 is cataloged in the U.S. Government catalog under NSN 5307-00-246-9624. This indicates validated use in U.S. government and defense supply chains.
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