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Technical Data Sheet
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Y4-0T — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

Y4-0T: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: BINDING, head_height: 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, thread_length: 0.205 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, screw_material: STEEL COMP 303 OR STEEL COMP 303SE. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-075-5685, 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
Y4-0T
NSN: 5305-00-075-5685
FSC: 5305 — Screws
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
head_styleBINDING
head_height0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_length0.205 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303 OR STEEL COMP 303SE
fastener_length0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.060 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch80
NSN5305-00-075-5685
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: Y4-0T · 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: 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC ALL MATERIAL RESPONSES
•
THREAD LENGTH: 0.205 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.060 INCHES IN
•
HEAD STYLE: BINDING
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC ALL MATERIAL RESPONSES
THREAD LENGTH0.205 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.060 INCHES IN
HEAD STYLEBINDING
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 303 OR STEEL COMP 303SE
INTERNAL DRIVE STYLESLOT
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 1
91568-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 Y4-0T?
Y4-0T is a SCREW,MACHINE.
What parts can replace Y4-0T?
There is 1 known substitute for Y4-0T: 91568-3. Substitute compatibility should be verified for your specific system.
What is the NSN for Y4-0T?
Y4-0T is cataloged in the U.S. Government catalog under NSN 5305-00-075-5685. 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.