WC4027-7-13 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

WC4027-7-13: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN, head_diameter: 0.672 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-513-9641, 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

WC4027-7-13

NSN: 5305-01-513-9641
FSC: 5305 — Screws
CAGE: 60516 — WEST COAST AEROSPACE, INC. (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN
head_diameter	0.672 INCHES NOMINAL IN
thread_length	0.656 INCHES NOMINAL IN
fastener_length	1.453 INCHES MINIMUM AND 1.483 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatment	PASSIVATE OVERALL
internal_drive_style	HIGH-TORQUE
NSN	5305-01-513-9641

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.453 INCHES MINIMUM AND 1.483 INCHES MAXIMUM IN

•

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

•

THREAD LENGTH: 0.656 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.438 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

GRIP LENGTH: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.453 INCHES MINIMUM AND 1.483 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.656 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.438 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
GRIP DIAMETER	0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN
SURFACE TREATMENT	PASSIVATE 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 3

ST3M557Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

HT4027-7-13Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST3M557-7-13Same 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 WC4027-7-13?

WC4027-7-13 is a SCREW,CLOSE TOLERANCE.

What parts can replace WC4027-7-13?

There are 3 known substitutes for WC4027-7-13: ST3M557, HT4027-7-13, ST3M557-7-13. Substitute compatibility should be verified for your specific system.

What is the NSN for WC4027-7-13?

WC4027-7-13 is cataloged in the U.S. Government catalog under NSN 5305-01-513-9641. This indicates validated use in U.S. government and defense supply chains.

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