181A349-1 — SETSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

181A349-1: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: PAN, head_height: 0.127 INCHES NOMINAL IN, point_style: CHAMFER DOG, point_length: 0.100 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-398-0289, 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

181A349-1

NSN: 5305-01-398-0289
FSC: 5305 — Screws
CAGE: 03640 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
head_style	PAN
head_height	0.127 INCHES NOMINAL IN
point_style	CHAMFER DOG
point_length	0.100 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
thread_length	0.369 INCHES MAXIMUM IN
point_diameter	0.142 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
fastener_length	0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
special_features	2 SLOTS 180 DEGREES APART, 0.049 IN. WIDTH BY 0.389 IN. LG, 0.100 IN. MAX DISTANCE FROM END OF POINT IN
thread_direction	RIGHT-HAND
NSN	5305-01-398-0289

COMPONENT DIAGRAM

KEY FEATURES

•

POINT DIAMETER: 0.142 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.127 INCHES NOMINAL IN

•

POINT LENGTH: 0.100 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN

•

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

•

THREAD LENGTH: 0.369 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763, 300 SERIES FED SPEC ALL MATERIAL RESPONSES OVERALL

•

POINT CHAMFER ANGLE: 45.0 DEGREES NOMINAL

TECHNICAL CHARACTERISTICS

POINT DIAMETER	0.142 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
HEAD HEIGHT	0.127 INCHES NOMINAL IN
POINT LENGTH	0.100 INCHES MAXIMUM IN
FASTENER LENGTH	0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.369 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763, 300 SERIES FED SPEC ALL MATERIAL RESPONSES OVERALL
POINT CHAMFER ANGLE	45.0 DEGREES NOMINAL
NOMINAL THREAD DIAMETER	0.190 INCHES IN
HEAD STYLE	PAN

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 1

181A349Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 181A349-1?

181A349-1 is a SETSCREW.

What parts can replace 181A349-1?

There is 1 known substitute for 181A349-1: 181A349. Substitute compatibility should be verified for your specific system.

What is the NSN for 181A349-1?

181A349-1 is cataloged in the U.S. Government catalog under NSN 5305-01-398-0289. This indicates validated use in U.S. government and defense supply chains.

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181A349-1 — SETSCREW

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