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H-6610 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

H-6610: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include thread_class: 2A A, head_diameter: 0.500 INCHES NOMINAL IN, thread_length: 0.563 INCHES NOMINAL IN, fastener_length: 0.625 INCHES NOMINAL IN, features_provided: WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-490-6439, 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
H-6610
NSN: 5305-00-490-6439
FSC: 5305 — Screws
CAGE: 14304 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORP DIV HARRIS DEFENSE COMMUNICATIONS (USA)
SPECIFICATIONS
thread_class2A A
head_diameter0.500 INCHES NOMINAL IN
thread_length0.563 INCHES NOMINAL IN
fastener_length0.625 INCHES NOMINAL IN
features_providedWASHER
NSN5305-00-490-6439
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H-6610 · 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
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
THREAD LENGTH: 0.563 INCHES NOMINAL IN
•
FEATURES PROVIDED: WASHER
•
THREAD CLASS: 2A A
•
HEAD DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.625 INCHES NOMINAL IN
THREAD LENGTH0.563 INCHES NOMINAL IN
FEATURES PROVIDEDWASHER
THREAD CLASS2A A
HEAD DIAMETER0.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
HW-200Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
66A5A62-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H-6610?
H-6610 is a SCREW,MACHINE.
What parts can replace H-6610?
There are 2 known substitutes for H-6610: HW-200, 66A5A62-1. Substitute compatibility should be verified for your specific system.
What is the NSN for H-6610?
H-6610 is cataloged in the U.S. Government catalog under NSN 5305-00-490-6439. 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.