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Technical Data Sheet
PartsTable / COMPONENT / 16490ADX
16490ADX ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.938 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN, screw_material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 430 OR STEEL COMP 302. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-282-3590, 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
16490ADX
NSN: 5305-00-282-3590
FSC: 5305
CAGE: 1VN02 — AIRDALE EXPRESS LLC DIV AIRDALE EXPRESS (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.938 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 430 OR STEEL COMP 302
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch32
NSN5305-00-282-3590
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 16490ADX · 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
•
SCREW SURFACE TREATMENT: PASSIVATE
•
HEAD HEIGHT: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: FILLISTER
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 32
•
THREAD LENGTH: 0.938 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SCREW SURFACE TREATMENTPASSIVATE
HEAD HEIGHT0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEFILLISTER
THREAD CLASS2A A
THREAD QUANTITY PER INCH32
THREAD LENGTH0.938 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SCREW MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 430 OR STEEL COMP 302
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
S51-1-1183FInterchangeable
interchangeable cross-reference
interchangeable
CMF-1/10-32118K0HMP0Interchangeable
interchangeable cross-reference
interchangeable
321-392-2Interchangeable
interchangeable cross-reference
interchangeable
027354-036Interchangeable
interchangeable cross-reference
interchangeable
027354-009Interchangeable
interchangeable cross-reference
interchangeable
16897Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 16490ADX?
16490ADX is a SCREW,MACHINE.
What parts can replace 16490ADX?
There are 15 known substitutes for 16490ADX: S51-1-1183F, CMF-1/10-32118K0HMP0, 321-392-2 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 16490ADX?
16490ADX is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-282-3590. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026