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Technical Data Sheet
PartsTable / COMPONENT / 9B8633
9B8633 ✓ 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: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.420 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, thread_length: 0.750 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-496-4828, 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
9B8633
NSN: 5305-00-496-4828
FSC: 5305
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.420 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
thread_length0.750 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle81.0 DEGREES MINIMUM AND 83.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.216 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch24
NSN5305-00-496-4828
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9B8633 · 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 STYLE: FLAT COUNTERSUNK
•
THREAD CLASS: 2A A
•
NOMINAL THREAD DIAMETER: 0.216 INCHES IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 24
•
SCREW MATERIAL: STEEL
•
SCREW SURFACE TREATMENT: CADMIUM
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEFLAT COUNTERSUNK
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.216 INCHES IN
FASTENER LENGTH0.750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTCADMIUM
THREAD LENGTH0.750 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3101-057-A000Interchangeable
interchangeable cross-reference
interchangeable
3177219-1Interchangeable
interchangeable cross-reference
interchangeable
6602Interchangeable
interchangeable cross-reference
interchangeable
WWP471TYPE1Interchangeable
interchangeable cross-reference
interchangeable
WW-P-471Interchangeable
interchangeable cross-reference
interchangeable
L00385Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9B8633?
9B8633 is a SCREW,MACHINE.
What parts can replace 9B8633?
There are 15 known substitutes for 9B8633: 3101-057-A000, 3177219-1, 6602 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9B8633?
9B8633 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-496-4828. 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