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CTS230A-11 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CTS230A-11: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include head_style: KNURLED NO. 1, head_height: 0.437 INCHES NOMINAL IN, point_style: BALL, point_length: 0.313 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 1.250 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-376-2920, 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
CTS230A-11
NSN: 5305-01-376-2920
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
head_styleKNURLED NO. 1
head_height0.437 INCHES NOMINAL IN
point_styleBALL
point_length0.313 INCHES NOMINAL IN
thread_class2A A
head_diameter1.250 INCHES NOMINAL IN
thread_length2.438 INCHES NOMINAL IN
fastener_length2.625 INCHES NOMINAL IN
special_featuresLARGE SWIVEL THREADED REMOVABLE FOOT 0.562 IN DIA. IN
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
nominal_thread_diameter0.375 INCHES IN
NSN5305-01-376-2920
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CTS230A-11 · 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: 0.437 INCHES NOMINAL IN
•
POINT LENGTH: 0.313 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.625 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
•
THREAD LENGTH: 2.438 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.437 INCHES NOMINAL IN
POINT LENGTH0.313 INCHES NOMINAL IN
FASTENER LENGTH2.625 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
THREAD LENGTH2.438 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
POINT STYLEBALL
COLORBLACK OVERALL
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 CTS230A-11?
CTS230A-11 is a THUMBSCREW.
What is the NSN for CTS230A-11?
CTS230A-11 is cataloged in the U.S. Government catalog under NSN 5305-01-376-2920. 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.