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4333U — Technical Data Sheet

✓ 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,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FLAT CHAMFER, head_height: 0.188 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.375 INCHES NOMINAL IN, thread_length: 0.250 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5305-00-993-4313, 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
4333U
NSN: 5305-00-993-4313
FSC: 5305
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleFLAT CHAMFER
head_height0.188 INCHES NOMINAL IN
thread_class2A A
head_diameter0.375 INCHES NOMINAL IN
thread_length0.250 INCHES MINIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.000 INCHES NOMINAL IN
shoulder_length0.750 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.250 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5305-00-993-4313
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4333U · 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 DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SHOULDER DIAMETER: 0.250 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
THREAD QUANTITY PER INCH: 32
•
HEAD STYLE: FLAT CHAMFER
•
HEAD HEIGHT: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD DIAMETER0.375 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
SURFACE TREATMENTPASSIVATE OVERALL
SHOULDER DIAMETER0.250 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER SHAPEROUND FIRST SHOULDER
THREAD QUANTITY PER INCH32
HEAD STYLEFLAT CHAMFER
HEAD HEIGHT0.188 INCHES NOMINAL IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
BWH2-1R3JInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0813-0051InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CW2B1-2700JInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N432A-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4333InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2135487G1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4333U?
4333U is a SCREW,SHOULDER.
What parts can replace 4333U?
There are 19 known substitutes for 4333U: BWH2-1R3J, 0813-0051, CW2B1-2700J and 16 more. Substitute compatibility should be verified for your specific system.
Is 4333U still available?
4333U is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026