C20645-3-10 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

C20645-3-10: 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: 0.625 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN, head_diameter: 0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-396-5233, 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

C20645-3-10

NSN: 5305-01-396-5233
FSC: 5305 — Screws
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)

SPECIFICATIONS

material	STEEL COMP H11 OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.625 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
head_diameter	0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN
thread_length	0.363 INCHES NOMINAL IN
fastener_length	0.973 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatment	CADMIUM OVERALL
internal_drive_style	OFFSET CRUCIFORM (TORQUE SET)
NSN	5305-01-396-5233

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.973 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.363 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.190 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

GRIP LENGTH: 0.625 INCHES NOMINAL IN

•

GRIP DIAMETER: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN

•

SURFACE TREATMENT: CADMIUM OVERALL

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.973 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
THREAD LENGTH	0.363 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.190 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.625 INCHES NOMINAL IN
GRIP DIAMETER	0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
SURFACE TREATMENT	CADMIUM OVERALL
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM

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

GS1009-3-10Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

5305PL1633302Reference document

Same NSN cross-reference

Reference document — Informative reference only

5305PL0885180Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is C20645-3-10?

C20645-3-10 is a SCREW,CLOSE TOLERANCE.

What parts can replace C20645-3-10?

There are 3 known substitutes for C20645-3-10: GS1009-3-10, 5305PL1633302, 5305PL0885180. Substitute compatibility should be verified for your specific system.

What is the NSN for C20645-3-10?

C20645-3-10 is cataloged in the U.S. Government catalog under NSN 5305-01-396-5233. This indicates validated use in U.S. government and defense supply chains.

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