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SMC454861 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SMC454861: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_length: 1.328 INCHES MINIMUM IN, hardness_rating: 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL, nominal_thread_diameter: 0.312 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-451-2924, 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
SMC454861
NSN: 5305-00-451-2924
FSC: 5305 — Screws
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_length1.328 INCHES MINIMUM IN
hardness_rating34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-451-2924
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SMC454861 · 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: 1.328 INCHES MINIMUM IN
•
HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD QUANTITY PER INCH: 18
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
THREAD LENGTH1.328 INCHES MINIMUM IN
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPASSIVATE OVERALL
THREAD QUANTITY PER INCH18
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SMC454861?
SMC454861 is a THUMBSCREW.
What is the NSN for SMC454861?
SMC454861 is cataloged in the U.S. Government catalog under NSN 5305-00-451-2924. 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.