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VT10021-5-20 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

VT10021-5-20: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.734 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, head_diameter: 0.429 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-520-4446, 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
VT10021-5-20
NSN: 5305-01-520-4446
FSC: 5305 — Screws
CAGE: 06710 — VALLEY-TODECO, INC. DBA ARCONIC FASTENING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleFLAT COUNTERSUNK
grip_length0.734 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
head_diameter0.429 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN
thread_length0.476 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
fastener_length1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL
internal_drive_styleOFFSET CRUCIFORM (TORQUE SET)
end_item_identificationF-16 ACFT
NSN5305-01-520-4446
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: VT10021-5-20 · 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: 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.476 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: CDA000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.734 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.476 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONCDA000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.734 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN
GRIP DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 3
GS1009-5-20Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
C20645-5-20Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
SF116-5-20Same 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 VT10021-5-20?
VT10021-5-20 is a SCREW,CLOSE TOLERANCE.
What parts can replace VT10021-5-20?
There are 3 known substitutes for VT10021-5-20: GS1009-5-20, C20645-5-20, SF116-5-20. Substitute compatibility should be verified for your specific system.
What is the NSN for VT10021-5-20?
VT10021-5-20 is cataloged in the U.S. Government catalog under NSN 5305-01-520-4446. 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.