WC4027-6-27 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

WC4027-6-27: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: FILLISTER COUNTERSUNK, grip_length: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN, head_height: 0.018 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-591-2238, 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

WC4027-6-27

NSN: 5305-01-591-2238
FSC: 5305 — Screws
CAGE: 60516 — WEST COAST AEROSPACE, INC. (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
head_style	FILLISTER COUNTERSUNK
grip_length	1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
head_height	0.018 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
head_diameter	0.510 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
thread_length	0.641 INCHES NOMINAL IN
fastener_length	2.314 INCHES MINIMUM AND 2.344 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatment	PASSIVATE OVERALL
NSN	5305-01-591-2238

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.018 INCHES MAXIMUM IN

•

FASTENER LENGTH: 2.314 INCHES MINIMUM AND 2.344 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2700 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.641 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: FILLISTER COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.018 INCHES MAXIMUM IN
FASTENER LENGTH	2.314 INCHES MINIMUM AND 2.344 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2700 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.641 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	FILLISTER COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
GRIP DIAMETER	0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN

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 3

ST3M557-6-27Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

HT4027-6-27Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

11923-6-27Same 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 WC4027-6-27?

WC4027-6-27 is a SCREW,CLOSE TOLERANCE.

What parts can replace WC4027-6-27?

There are 3 known substitutes for WC4027-6-27: ST3M557-6-27, HT4027-6-27, 11923-6-27. Substitute compatibility should be verified for your specific system.

What is the NSN for WC4027-6-27?

WC4027-6-27 is cataloged in the U.S. Government catalog under NSN 5305-01-591-2238. This indicates validated use in U.S. government and defense supply chains.

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