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4-40NC2AX3-8 — SCREW,ASSEMBLED WASHER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4-40NC2AX3-8: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include head_style: WATERTIGHT, head_height: 0.069 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.220 INCHES NOMINAL IN, thread_length: 0.375 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-062-2686, 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
4-40NC2AX3-8
NSN: 5305-00-062-2686
NIINs: 000622686, 009513728
FSC: 5305 — Screws
CAGE: 70318 — ALLMETAL SCREW PRODUCTS CORP (USA)
SPECIFICATIONS
head_styleWATERTIGHT
head_height0.069 INCHES NOMINAL IN
thread_class2A A
head_diameter0.220 INCHES NOMINAL IN
thread_length0.375 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedO RING
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
screw_surface_treatmentPASSIVATE
NSN5305-00-062-2686
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4-40NC2AX3-8 · 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: 0.062 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
•
PRIMARY WASHER OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
THREAD LENGTH: 0.344 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: ROUND
•
PRIMARY WASHER STYLE: FINISHING
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.062 INCHES NOMINAL IN
FASTENER LENGTH0.375 INCHES NOMINAL IN
PRIMARY WASHER OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
THREAD LENGTH0.344 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEROUND
PRIMARY WASHER STYLEFINISHING
THREAD DIRECTIONRIGHT-HAND
PRIMARY WASHER MATERIAL THICKNESS0.023 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
4-40VNC2AX3-8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4-40NC2AX3-8?
4-40NC2AX3-8 is a SCREW,ASSEMBLED WASHER.
What parts can replace 4-40NC2AX3-8?
There is 1 known substitute for 4-40NC2AX3-8: 4-40VNC2AX3-8. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-40NC2AX3-8?
4-40NC2AX3-8 is cataloged in the U.S. Government catalog under NSN 5305-00-062-2686. 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.