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Technical Data Sheet
PartsTable / COMPONENT / 4322618
4322618 ✓ 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 SPINDLE,MECHANICALLY ACTUATED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thickness: 0.125 INCHES NOMINAL IN, head_style: PAN NO. 2, hole_shape: ROUND, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A A.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-472-9345, 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
4322618
NSN: 5305-01-472-9345
FSC: 5305
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thickness0.125 INCHES NOMINAL IN
head_stylePAN NO. 2
hole_shapeROUND
head_height0.250 INCHES NOMINAL IN
thread_class2A A
head_diameter0.500 INCHES NOMINAL IN
hole_diameter2.2812 INCHES NOMINAL IN
overall_width1.8750 INCHES NOMINAL IN
thread_length0.500 INCHES NOMINAL IN
overall_length6.8750 INCHES MAXIMUM IN
fastener_length1.250 INCHES NOMINAL IN
NSN5305-01-472-9345
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4322618 · 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
•
THREAD CLASS: 2A A
•
THREAD SERIES DESIGNATOR: UNF
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 1.250 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: 2
•
MATERIAL: COPPER ALLOY 510 OVERALL
•
FIRST DIAMETER FROM HEAD: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
THREAD SERIES DESIGNATORUNF
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.250 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES NOMINAL IN
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
MATERIALCOPPER ALLOY 510 OVERALL
FIRST DIAMETER FROM HEAD0.312 INCHES NOMINAL IN
END ITEM IDENTIFICATIONHATCH
FASTENER LENGTH1.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
124-4322618 PC 29Interchangeable
interchangeable cross-reference
interchangeable
4322618Interchangeable
interchangeable cross-reference
interchangeable
124-558825 PC 2Interchangeable
interchangeable cross-reference
interchangeable
124-4322618 PC 2BInterchangeable
interchangeable cross-reference
interchangeable
124-4322618 PC 2Interchangeable
interchangeable cross-reference
interchangeable
124-4322618 PC3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4322618?
4322618 is a SPINDLE,MECHANICALLY ACTUATED.
What parts can replace 4322618?
There are 10 known substitutes for 4322618: 124-4322618 PC 29, 4322618, 124-558825 PC 2 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4322618?
4322618 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-472-9345. 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