3M50-4-19 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

3M50-4-19: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN, thread_length: 0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-935-7579, 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

3M50-4-19

NSN: 5305-00-935-7579
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
thread_length	0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	1.640 INCHES MINIMUM AND 1.687 INCHES MAXIMUM IN
shoulder_length	1.077 INCHES MINIMUM AND 1.099 INCHES MAXIMUM FIRST SHOULDER IN
special_features	FURNISHED W/1 PACKING PREFORMED
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
shoulder_diameter	0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN
NSN	5305-00-935-7579

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.640 INCHES MINIMUM AND 1.687 INCHES MAXIMUM IN

•

SHOULDER LENGTH: 1.077 INCHES MINIMUM AND 1.099 INCHES MAXIMUM FIRST SHOULDER IN

•

SHOULDER DIAMETER: 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.640 INCHES MINIMUM AND 1.687 INCHES MAXIMUM IN
SHOULDER LENGTH	1.077 INCHES MINIMUM AND 1.099 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER	0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	FURNISHED W/1 PACKING PREFORMED
SURFACE TREATMENT	CADMIUM OVERALL

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 1

HT409A4-19Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 3M50-4-19?

3M50-4-19 is a SCREW,SHOULDER.

What parts can replace 3M50-4-19?

There is 1 known substitute for 3M50-4-19: HT409A4-19. Substitute compatibility should be verified for your specific system.

What is the NSN for 3M50-4-19?

3M50-4-19 is cataloged in the U.S. Government catalog under NSN 5305-00-935-7579. This indicates validated use in U.S. government and defense supply chains.

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