ST3M506 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ST3M506: 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: 0.644 INCHES MINIMUM AND 0.704 INCHES MAXIMUM IN, thread_length: 0.574 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-046-5443, 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

ST3M506

NSN: 5305-01-046-5443
NIINs: 010465443, 010465446, 010476345, 011432833
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	0.644 INCHES MINIMUM AND 0.704 INCHES MAXIMUM IN
thread_length	0.574 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	1.646 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN
shoulder_length	0.951 INCHES MINIMUM AND 0.971 INCHES MAXIMUM FIRST SHOULDER IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
shoulder_diameter	0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM FIRST SHOULDER IN
internal_drive_style	HIGH-TORQUE
NSN	5305-01-046-5443

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.763 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN

•

SHOULDER LENGTH: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM FIRST SHOULDER IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

SHOULDER DIAMETER: 0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.763 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
SHOULDER LENGTH	0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER	0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND

SUBSTITUTES & CROSS-REFERENCES 2

HT4011-5-5Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

11919-5-5Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is ST3M506?

ST3M506 is a SCREW,SHOULDER.

What parts can replace ST3M506?

There are 2 known substitutes for ST3M506: HT4011-5-5, 11919-5-5. Substitute compatibility should be verified for your specific system.

What is the NSN for ST3M506?

ST3M506 is cataloged in the U.S. Government catalog under NSN 5305-01-046-5443. This indicates validated use in U.S. government and defense supply chains.

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