ST3M653C6-19A — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ST3M653C6-19A: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK UNDERCUT, head_height: 0.109 INCHES MINIMUM IN, thread_class: 3A A, head_diameter: 0.756 INCHES MINIMUM IN, thread_length: 0.615 INCHES MINIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-585-8097, 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

ST3M653C6-19A

NSN: 5305-01-585-8097
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

head_style	FLAT COUNTERSUNK UNDERCUT
head_height	0.109 INCHES MINIMUM IN
thread_class	3A A
head_diameter	0.756 INCHES MINIMUM IN
thread_length	0.615 INCHES MINIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM
internal_drive_style	HIGH-TORQUE
nominal_thread_diameter	0.375 INCHES IN
thread_quantity_per_inch	24
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF)
NSN	5305-01-585-8097

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.109 INCHES MINIMUM IN

•

THREAD LENGTH: 0.615 INCHES MINIMUM IN

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK UNDERCUT

•

THREAD DIRECTION: RIGHT-HAND

•

INTERNAL DRIVE STYLE: HIGH-TORQUE

•

COUNTERSINK ANGLE: 99.0 DEGREES MINIMUM

•

THREAD CLASS: 3A A

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.109 INCHES MINIMUM IN
THREAD LENGTH	0.615 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK UNDERCUT
THREAD DIRECTION	RIGHT-HAND
INTERNAL DRIVE STYLE	HIGH-TORQUE
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM
THREAD CLASS	3A A
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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 2

HT4020-6-19AXSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

WC4020-6-19AXSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is ST3M653C6-19A?

ST3M653C6-19A is a SCREW,SHOULDER.

What parts can replace ST3M653C6-19A?

There are 2 known substitutes for ST3M653C6-19A: HT4020-6-19AX, WC4020-6-19AX. Substitute compatibility should be verified for your specific system.

What is the NSN for ST3M653C6-19A?

ST3M653C6-19A is cataloged in the U.S. Government catalog under NSN 5305-01-585-8097. This indicates validated use in U.S. government and defense supply chains.

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