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WC4041-4-3-6 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

WC4041-4-3-6: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FILLISTER COUNTERSUNK, grip_length: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, head_height: 0.015 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-273-1632, 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
WC4041-4-3-6
NSN: 5305-01-273-1632
FSC: 5305 — Screws
CAGE: 60516 — WEST COAST AEROSPACE, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleFILLISTER COUNTERSUNK
grip_length0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
head_height0.015 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
head_diameter0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
thread_length0.162 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN
fastener_length0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatmentPASSIVATE OVERALL
NSN5305-01-273-1632
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: WC4041-4-3-6 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.015 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.162 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FILLISTER COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.015 INCHES MAXIMUM IN
FASTENER LENGTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.162 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFILLISTER COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 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
HT4041-4-3-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3M707-4-3-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11873-4-3-6Same 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 WC4041-4-3-6?
WC4041-4-3-6 is a SCREW,CLOSE TOLERANCE.
What parts can replace WC4041-4-3-6?
There are 3 known substitutes for WC4041-4-3-6: HT4041-4-3-6, 3M707-4-3-6, 11873-4-3-6. Substitute compatibility should be verified for your specific system.
What is the NSN for WC4041-4-3-6?
WC4041-4-3-6 is cataloged in the U.S. Government catalog under NSN 5305-01-273-1632. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.