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PartsTable / COMPONENT / 21T03-3-10-2AA
21T03-3-10-2AA ✓ 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 ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include material: ALUMINUM STAND-OFF, head_style: FILLISTER, thread_class: 3A A, head_diameter: 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, thread_length: 0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN, special_features: HEAD STRAIGHT KNURL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-763-2957, 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
21T03-3-10-2AA
NSN: 5305-00-763-2957
FSC: 5305
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
materialALUMINUM STAND-OFF
head_styleFILLISTER
thread_class3A A
head_diameter0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
thread_length0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
special_featuresHEAD STRAIGHT KNURL
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNF
material_accommodated_thickness0.105 INCHES NOMINAL IN
NSN5305-00-763-2957
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21T03-3-10-2AA · 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
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: FILLISTER
•
MATERIAL: STEEL FASTENER
•
HEAD DIAMETER: 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.105 INCHES NOMINAL IN
•
THREAD LENGTH: 0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEFILLISTER
MATERIALSTEEL FASTENER
MATERIALALUMINUM STAND-OFF
HEAD DIAMETER0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.105 INCHES NOMINAL IN
THREAD LENGTH0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
THREAD QUANTITY PER INCH32
INTERNAL DRIVE STYLESLOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
921027-1Interchangeable
interchangeable cross-reference
interchangeable
VP9-2BG1Interchangeable
interchangeable cross-reference
interchangeable
586-326Interchangeable
interchangeable cross-reference
interchangeable
35474040-1001Interchangeable
interchangeable cross-reference
interchangeable
0301-8490Interchangeable
interchangeable cross-reference
interchangeable
CA13104&10&3&10Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21T03-3-10-2AA?
21T03-3-10-2AA is a SCREW ASSEMBLY,PANEL.
What parts can replace 21T03-3-10-2AA?
There are 8 known substitutes for 21T03-3-10-2AA: 921027-1, VP9-2BG1, 586-326 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21T03-3-10-2AA?
21T03-3-10-2AA is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-763-2957. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026