WC4027-4-12 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

WC4027-4-12: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: OVAL COUNTERSUNK, thread_class: 3A A, head_diameter: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, thread_length: 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, fastener_length: 0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-487-6866, 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

WC4027-4-12

NSN: 5305-01-487-6866
FSC: 5305 — Screws
CAGE: 60516 — WEST COAST AEROSPACE, INC. (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
head_style	OVAL COUNTERSUNK
thread_class	3A A
head_diameter	0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
thread_length	0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
fastener_length	0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
internal_drive_style	HIGH-TORQUE
thread_quantity_per_inch	28
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF)
material_document_and_classification	23-118 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN	5305-01-487-6866

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: 23-118 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL

•

HEAD STYLE: OVAL COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

INTERNAL DRIVE STYLE: HIGH-TORQUE

•

THREAD CLASS: 3A A

•

THREAD QUANTITY PER INCH: 28

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
THREAD LENGTH	0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	23-118 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE	OVAL COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
INTERNAL DRIVE STYLE	HIGH-TORQUE
THREAD CLASS	3A A
THREAD QUANTITY PER INCH	28
MATERIAL	STEEL CORROSION RESISTING OVERALL
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.

5305-00-001-5016 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 3

ST3M557-4-12Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

HT4027-4-12Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

11923-4-12Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 WC4027-4-12?

WC4027-4-12 is a SCREW,CLOSE TOLERANCE.

What parts can replace WC4027-4-12?

There are 3 known substitutes for WC4027-4-12: ST3M557-4-12, HT4027-4-12, 11923-4-12. Substitute compatibility should be verified for your specific system.

What is the NSN for WC4027-4-12?

WC4027-4-12 is cataloged in the U.S. Government catalog under NSN 5305-01-487-6866. This indicates validated use in U.S. government and defense supply chains.

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