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5044518 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5044518: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: KNURLED NO. 1, head_height: 0.250 INCHES NOMINAL IN, point_style: FLAT, thread_length: 0.250 INCHES NOMINAL IN, shoulder_shape: ROUND ALL SHOULDERS.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-151-0218, 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
5044518
NSN: 5305-01-151-0218
FSC: 5305 — Screws
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleKNURLED NO. 1
head_height0.250 INCHES NOMINAL IN
point_styleFLAT
thread_length0.250 INCHES NOMINAL IN
shoulder_shapeROUND ALL SHOULDERS
fastener_length0.609 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPRIMER OVERALL
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-151-0218
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5044518 · 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
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.609 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND ALL SHOULDERS
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: FLAT
•
SURFACE TREATMENT: PRIMER OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH0.609 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES NOMINAL IN
SHOULDER SHAPEROUND ALL SHOULDERS
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
SURFACE TREATMENTPRIMER OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5044518?
5044518 is a THUMBSCREW.
What is the NSN for 5044518?
5044518 is cataloged in the U.S. Government catalog under NSN 5305-01-151-0218. 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.