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Technical Data Sheet
PartsTable / COMPONENT / Y1-4T
Y1-4T ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.072 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, screw_material: STEEL COMP 430. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-282-3598, 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
Y1-4T
NSN: 5305-00-282-3598
FSC: 5305
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.072 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
screw_materialSTEEL COMP 430
fastener_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch40
NSN5305-00-282-3598
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: Y1-4T · 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
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
SPECIFICATION/STANDARD DATA: 88044-AN500/CANCELED/ GOVERNMENT STANDARD
•
HEAD STYLE: FILLISTER
•
SCREW MATERIAL: STEEL COMP 430
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HEAD DIAMETER: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.112 INCHES IN
SPECIFICATION/STANDARD DATA88044-AN500/CANCELED/ GOVERNMENT STANDARD
HEAD STYLEFILLISTER
SCREW MATERIALSTEEL COMP 430
INTERNAL DRIVE STYLESLOT
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD DIAMETER0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTPASSIVATE
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
FFS92TYPE1STYLE5SInterchangeable
interchangeable cross-reference
interchangeable
AN500C4-4Interchangeable
interchangeable cross-reference
interchangeable
319005PC3Interchangeable
interchangeable cross-reference
interchangeable
63214Interchangeable
interchangeable cross-reference
interchangeable
423518Interchangeable
interchangeable cross-reference
interchangeable
LH4096-108Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Y1-4T?
Y1-4T is a SCREW,MACHINE.
What parts can replace Y1-4T?
There are 9 known substitutes for Y1-4T: FFS92TYPE1STYLE5S, AN500C4-4, 319005PC3 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Y1-4T?
Y1-4T is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-282-3598. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026