ST3M496-6-21 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ST3M496-6-21: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.752 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN, thread_length: 0.516 INCHES NOMINAL IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-567-7889, 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

ST3M496-6-21

NSN: 5305-01-567-7889
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.752 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN
thread_length	0.516 INCHES NOMINAL IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	1.828 INCHES NOMINAL IN
shoulder_length	0.988 INCHES MINIMUM AND 1.008 INCHES MAXIMUM FIRST SHOULDER IN
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
shoulder_diameter	0.389 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatment	PASSIVATE OVERALL
NSN	5305-01-567-7889

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.828 INCHES NOMINAL IN

•

SHOULDER LENGTH: 0.988 INCHES MINIMUM AND 1.008 INCHES MAXIMUM FIRST SHOULDER IN

•

SHOULDER DIAMETER: 0.389 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.516 INCHES NOMINAL IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.828 INCHES NOMINAL IN
SHOULDER LENGTH	0.988 INCHES MINIMUM AND 1.008 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER	0.389 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.516 INCHES NOMINAL IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SURFACE TREATMENT	PASSIVATE OVERALL
INTERNAL DRIVE STYLE	HIGH-TORQUE

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

HT4008-6-21Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

11913-6-21Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

WC4008-6-21Same 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 ST3M496-6-21?

ST3M496-6-21 is a SCREW,SHOULDER.

What parts can replace ST3M496-6-21?

There are 3 known substitutes for ST3M496-6-21: HT4008-6-21, 11913-6-21, WC4008-6-21. Substitute compatibility should be verified for your specific system.

What is the NSN for ST3M496-6-21?

ST3M496-6-21 is cataloged in the U.S. Government catalog under NSN 5305-01-567-7889. This indicates validated use in U.S. government and defense supply chains.

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