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566-6404324-11 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

566-6404324-11: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING FEATURE, head_style: FLAT CHAMFER, head_height: 1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 2.597 INCHES MINIMUM AND 2.625 INCHES MAXIMUM IN, thread_length: 3.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-449-8828, 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
566-6404324-11
NSN: 5305-01-449-8828
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING FEATURE
head_styleFLAT CHAMFER
head_height1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
thread_class2A A
head_diameter2.597 INCHES MINIMUM AND 2.625 INCHES MAXIMUM IN
thread_length3.750 INCHES MAXIMUM IN
fastener_length3.550 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
hardness_rating24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM FASTENER
locking_featurePATCH OR PELLET OR STRIP THREADS
thread_directionRIGHT-HAND
width_across_flats1.250 INCHES NOMINAL IN
internal_drive_styleHEXAGON
NSN5305-01-449-8828
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 566-6404324-11 · 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
•
WIDTH ACROSS FLATS: 1.250 INCHES NOMINAL IN
•
HEAD HEIGHT: 1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.550 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
•
THREAD LENGTH: 3.750 INCHES MAXIMUM IN
•
HARDNESS RATING: 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM FASTENER
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
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NOMINAL THREAD DIAMETER: 1.750 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
HEAD HEIGHT1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
FASTENER LENGTH3.550 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
THREAD LENGTH3.750 INCHES MAXIMUM IN
HARDNESS RATING24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
NOMINAL THREAD DIAMETER1.750 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
211074916Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 566-6404324-11?
566-6404324-11 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 566-6404324-11?
There is 1 known substitute for 566-6404324-11: 211074916. Substitute compatibility should be verified for your specific system.
What is the NSN for 566-6404324-11?
566-6404324-11 is cataloged in the U.S. Government catalog under NSN 5305-01-449-8828. 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.